Objective: The aim of this study is to evaluate the perioperative and postoperative follow-up results of patients operated for a parotid mass.

Materials and Methods: A total of 66 patients who were operated between 2000 and 2011, were evaluated retrospectively.

Results: The mean age of the patients was 48,6. On the basis of post-operative histopathologic assessement, 61 of the cases were found to be primary benign, 3 of the cases  primary malignant and 2 of the cases secondary malignant. Pleomorphic adenoma was the most common in primary benign tumors group with 29 cases, Warthin tumors were in the second place with 14 cases. Adenoid cystic carcinoma, adenocarcinoma and expleomorphic adenoma were observed as primary malignant tumors. Both of the seconder malignant tumors were metastasis of squamous cell carcinoma. Sensitivity and specifity of the preoperative fine needle aspiration biopsy in the benign-malignant differentiation were found as 60 % and 96 %, respectively. Superfacial parotidectomy, total parotidectomy and radical parotidectomy were used as surgical procedures. In addition to this procedure, neck dissection was performed in several cases. The most frequent complication was temporary facial nerve paresis.

Conclusion: Fine needle aspiration biopsy is an effective diagnostic procedure for the benign-malignant differentiation of the parotid tumors. Superfacial parotidectomy is an adequate and efficient surgical procedure for the benign parotid tumors and complication risk is considerably low when applied carefully. For malignant tumors, superfacial, total or radical parotidectomy should be performed and when necessary, neck dissection and postoperative radiotherapy should be added to the treatment.

Aim: Gastric cancer is one of the leading causes of cancer-related deaths. Tumor budding has been
shown to be a prognostic factor in many cancers. In this study, we aimed to evaluate the prognostic
significance of tumor budding in intestinal-type gastric adenoc arcinoma.
Patients and Methods: A total of 152 cases diagnosed as intestinal type gastric adenocarcinoma in
the Pathology Clinic between 2015 and 2021 were included in the study. Tumor budding was grouped
as low, medium and high. Hematoxylin and eosin-stained slides were re-evaluated in terms of tumor
differentiation, lymphovascular invasion (LVI), perineural invasion (PNI), lymph node involvement, depth
of invasion (pT) and tumor budding.
Results: Tumor budding was low in 30.9% (n=47) of the subjects included in the study, moderate in 37.5%
(n=57) and high in 31.4% (n=48). Statistically, as tumor budding increased, tumor size increased (p<0,05),
follow-up times were shortened, survival time (p<0,05), and tumor differentiation (p<0,05) decreased. A
statistically significant correlation was observed between tumor budding and LVI (p<0,05), PNI (p<0,05),
pT(p<0,05), lymph node involvement(p<0,05), and mortality of the cases (p<0,05). No statistically
significant correlation was observed between tumor budding and gender, age, tumor localization and
operation type (p>0.05).
Conclusions: Tumor budding is associated with poor prognostic factors. As it may be important to guide
the treatment modality and follow-up, tumor budding status may be mentioned in routine pathology reports.

Aim: Gallbladder cancer is an uncommon, but aggressive tumor. Its prognosis is poor and the most cases are incidentally detected in histopathological examinations of cholecystectomies due to benign diseases. With the era of laparoscopic cholecystectomy, the number of cases detected in early stage is increasing. In this study, we aimed to evaluate the rate of cancer encountered and the distribution of non-cancer diagnoses in cholecystectomy materials sent to our department, together with the literature findings.

Materials and Methods: The results of the cholecystectomy materials sent to the pathology laboratory and examined routinely in 2016-2017 were retrospectively evaluated by forming diagnostic groups. Clinical preliminary diagnoses, demographic informations (age, sex), and pathology reports of the patients were reviewed.

Results: We included a total of 1000 cholecystectomy materials into the study. Two of the 7 patients who presented with malignancy were incidentally diagnosed and underwent laparoscopic cholecystectomy with the preliminary diagnosis of cholelithiasis, with the primary focus was gallbladder in one patient, and the other was compatible with colonic adenocarcinoma infiltration. Preoperative and / or perioperative malignancy was detected in the remaining 5 patients. A large proportion (> 90%) of the other cases had chronic or chronic active cholecystitis and low rate of acute cholecystitis included gastric heterotopia found in 2 (0.2%), tubular adenoma in 1 (0.1%), tubulovillous adenoma in 1 (0.1%), adenomyoma / adenomyomatosis in 4 (0.4%), polyp in 6 (0,6%) and dysplasia (Biliary intraepithelial neoplasia, BilIN) in 5 (0.5%) patients.

Aim: Thyroid Hormone Receptor Interacting Protein 13 (TRIP13) is a protein involved in spindle-aggregation checkpoint, which plays a role in meiotic recombination. Recent studies have revealed that TRIP13 may be a potential tumor inducer in many cancers, including glioblastoma multiforme (GBM). We aimed to investigate the anticancer activity of DCZ0415, a small molecule inhibitor of TRIP13, in U87 human GBM cells in this study.

Materials and Methods: The possible anticancer effect of DCZ0415 on U87 cells was determined by cytotoxicity, colony formation, and apoptosis assays. In addition, the effects of DCZ0415 on mRNA levels of genes which were involved in apoptosis, invasion and Transforming Growth Factor-Beta (TGF-β) signaling pathway were investigated by qRT-PCR analysis.

Results: DCZ0415 inhibited U87 cell proliferation in a dose and time dependent manner. The IC₅₀ dose of DCZ0415 for 48 hours was determined as 19.77 µM in U87 cells. DCZ0415 treatment at this dose induced apoptosis and suppressed colony forming abilities of U87 cells. In addition, DCZ0415 altered mRNA levels of genes associated with apoptosis, invasion and TGF-β signaling pathway, which could lead to anticancer effects.

Conclusion: DCZ0415, an inhibitor of TRIP13 which has been evaluated as a new oncogenic factor in cancer, has an anticancer effect on GBM cells. In this respect, it is thought that TRIP13 may be an important therapeutic target for GBM and DCZ0415 may be considered as an effective inhibitor that causes anticancer effects in GBM cells.

Aim: It was aimed to investigate  the relationship of disease clinical stage between the maximum diameter of primer lesion (LEGÇ), maximum of standardized uptake value (SUVmax), mean of standardized uptake value (SUVmean), tumor volüme (TV) and total lesion glycolysis (TLG) values derived from positron emission tomography/computed tomography (PET/CT) images.

Method: The information of 130 lung cancer patients diagnosed histopathologically between 01.01.2012 and 31.12.2014 in Necmettin Erbakan University Nuclear Medicine Department of Meram Medical Faculty scanned for PET-CT for lung cancer diagnosis and staging,  were included in this study. The values of the maximum diameter of primer lesion, SUVmax, SUVmean, TLG and MTV derived from PET-CT scanning and their histopathological subtypes, other clinical and radyological information of patients were noted. The non-small cell lung cancer patients were graded according to tumor diameter, nodal and involvement metastasis (TNM) staging system using clinical information, PET-CT and other radyological test results if any. On the other hand, the small cell carcinoma diagnosed were categorised as limited or extensive stage.

Findings: In this study, the mean age of 118 men and 12 women,  totally 130 patients, was evaluated  63,46 ±9,96 ( range 40-87 age ). The patients were classified as 106 non-small cell lung Cancer (NSCLC) (81.5%) ve 24 small cell lung cancer (SCLC) (18.5%).  The  histopathologically diagnosed NSCLC patients were consists of  62 squamous cell cancers, 39 adeno cancers, and 5  other types (3 carcinoid tumors, 1 large cell cancer and 1 sarcomatoid tumor). 

Results: In our study, it was observed that there was no significant relationship between the maximum diameter of the lesion, SUVmax, SUVmean, MTV and TLG values among SCLC and NSCLC patients. Additionally, it was also found that there was no correlation between these parameters and the SCLC stage.  The maximum diameter of the lesion, SUVmax, SUVmean, MTV and TLG parameters were related with stage.

Conclusion: Higher SUVmax, SUVmean, TV, and TLG values of the primary tumor were determined to predict the more advanced clinical stage in NSCLC. This relationship between metabolic parameters and the clinical stage suggest that PET / CT may be valuable in terms of providing prognostic information in NSCLC.

Purpose: Laryngeal squamous cell carcinoma poses a management challenge due to the lack of reliable prognostic markers. Although tumor budding (TB) has been shown to predict poor prognosis in some malignancies, its prognostic significance in laryngeal cancer remains uncertain in the literature. Therefore, the objective of this study is to evaluate the impact of TB on prognosis and its correlation with other established prognostic factors in laryngeal squamous cell carcinoma.

Patients and Methods: In the department of otolaryngology the files of 60 patients with laryngeal squamous cell carcinoma who underwent surgery, postoperative chemoradiotherapy between 2008 and 2015 were analyzed retrospectively. The patient’s history, family history, age, TNM (tumor, node, metastases) classification, radiological imaging, type of surgery performed, and the results of the pathological specimen were evaluated. PanCK immunohistochemical staining was performed on old paraffin block sections containing tumoral tissue, previously stained with Hematoxylin & Eosin. The TB scores were evaluated by the pathology department, and the association between all obtained parameters and clinicopathological variables was analyzed.

Results: Our findings showed a significant association between tumor budding and perineural infiltration, a known prognostic factor for laryngeal carcinoma (P=0.006). TB was found to be an independent risk factor for perineural infiltration and pathological lymph node involvement (p=0.003). Pathological lymph node involvement was also found to be an independent risk factor for lymphovascular invasion (p=0.028).

Conclusions: Our study provides evidence for a significant association between tumor budding and perineural infiltration, which are established prognostic factors in laryngeal carcinoma. This suggests that tumor budding may be an important factor in determining tumor prognosis.

Aim: Glioblastoma is the most frequent, and fatal brain cancer in adults. Toll-like receptors are cell surface receptors comprised of 10 receptors (Toll-like receptor 1−10) related to triggering innate immunity by recognizing pathogens. However, some studies suggested that the expression of Toll-like receptors might be related to cancer cell proliferation and progression in some tumors including glioblastoma with some contradictory results. Thus, we aimed to investigate all ten members of the Toll-like receptor expression profile in glioblastoma for the first time in the literature to contribute additional data to the literature.

Patients and Methods: Quantitative real-time polymerase chain reaction was applied to formalin-fixed paraffin-embedded tissues of 25 glioblastoma patients, diagnosed between January and December 2018, to evaluate the mRNA expression of Toll-like receptors. Also, the expression of each Toll-like receptor was investigated by cell culture analysis using five different cell lines of human glioblastoma (T98G, U87-MG, U373, LN18, and A172). The results were compared statistically.

Results: Toll-like receptor 1, Toll-like receptor 6, and Toll-like receptor 7 mRNA levels were significantly increased in the formalin-fixed paraffin-embedded tissues of the glioblastoma group (p<0.001, each) whereas the expression of Toll-like receptor 4 and Toll-like receptor 10 was downregulated compared to the control group (p=0.023, p<0.001, respectively), by qPCR analysis.  Additionally, Toll-like receptor mRNA expression profiles differed among the cell lines.

Conclusion: In our study, many Toll-like receptor members seemed to display different expression level in the glioblastoma microenvironment and affect it diversely.  Further comprehensive studies are required to confirm the endogenous protein level of each Toll-like receptor in glioblastoma, to clarify their precise role in the pathogenesis and prognosis of glioblastoma, and to shed light on new target therapies.

Aim: In this study, we aimed to present our 10-year experience regarding clinicopathology characteristics and
overall survival of 69 patients with adenocarcinomas of esophag ogastric junction (AEJs).
Patients and Methods: A total of 69 consecutive patients diagnosed with AEJ and operated in our clinics
were included in the study. Patients’ demographic characteristics; laboratory parameters, surgical resection
approach; TNM stages; resection extent; total number of removed lymph nodes; tumor localization; presence
of lymphatic, vascular and perineural invasion and overall survival (OS) status were recorded. The patients
were divided into two groups as Siewert Type II and Siewert Type III.
Results: There was no statistically significant difference between the groups in terms of age (p=0.696)
and gender (p=0.140). Distribution of T stage was statistically significantly different between the groups
(p=0.026). OS was found to be significantly higher in patients at R0 level compared to those at R1 level. OS
was statistically significantly higher in patients without lymphatic, vascular and perineural invasion. 1-year OS
was determined as 83.50%, 3-year OS as 49.10% and 5-year OS as 43.60%. The risk of mortality increased
by 8.63 folds in the presence of perigastric fat infiltration, 12.60 folds in the case of vascular invasion and
13.45 folds in the case of perineural invasion. The survival rate was found as 51% and 41% in the Siewert
Type II and Type 3 patients at median 10-year follow-up.
Conclusion: This study had successfully evaluated the clinicopathological characteristics and overall
survival, and demonstrated that Siewert II tumors and Siewert III tumors had similar survival outcomes.
Further comprehensive multicenter studies with larger series and long-term studies are needed to provide
contribution to the existing evidence on outcomes of patients w ith AEJs.

Wilm’s tumor, the most common childhood renal cancer, is a heterogeneous renal tumor in which diffuse anaplastic or negative histology represents poor prognosis. In Wilm’s tumor pathogenesis, a large number of factors remain uncertain. For this reason, the disease continues to be the focus of further research. MicroRNAs are small, protein-encoding RNA molecules that regulate gene expression at post-transcriptional stage. The role of microRNAs in cancer onset and progression has been demonstrated in most solid cancers. MicroRNAs also have a diagnostic potential, and microRNA-targeted treatment is a candidate for an important role in cancer treatment. In Wilm’s tumor, dysregulation of certain key oncogenic or tumor suppressor microRNAs, such as miR-17 ~ 92 cluster, miR-185, miR-204, and miR-483 has been documented. In this study, we will summarize the current evidence about the role of dysregulated microRNAs in the development of the Wilm’s tumor. The possible effects of MicroRNAs on the clinical diagnosis and prognosis of the Wilm’s tumor will also be discussed. Thus, an overview of the future place of microRNAs in the implementation of new treatment options will be presented.

AIM: Kaposi sarcoma (KS) is a vascular proliferative disease associated with human herpesvirus-8 (HHV-8). The studies about the epidemiology of KS in Turkey are limited. We aimed to evaluate the clinical, pathological, and immunohistochemical features a total of 78 KS patients, presenting them along with the available information in the literature.

MATERIALS AND METHODS: We retrospectively evaluated the clinical and histopathological characteristics of a total of 78 patients with KS.

RESULTS: The age of the patients ranged from 46 to 93 years and the mean age was 74.06 years. Of the patients, 59 were males and 19 were females. The lesions were most commonly found on the lower extremities. In the study patients, KS was found both at earlier stages with patches or plaques in 54 of the patients and at the nodular stage in 24 patients. A punch biopsy or an excisional biopsy was performed in 23 and 55 patients, respectively. In the excisional biopsies, the smallest tumor diameter was 0.35 cm and the largest one was 2.8 cm with a mean diameter of 0.98 cm.

DISCUSSION: This retrospective study demonstrated that; in Konya, KS developed in older people and it was most commonly seen in males. It was observed that the demographic features and histopathological types of KS in the study patients were similar to the reports in the literature.

Objective: Most of the renal neoplasms are the epithelial and malign ones. The renal cell carcinoma (RCC), which is the most frequently seen malign renal tumor, consists of 2-4% of all the malign tumors seen among adult individuals and 80-90% of all the malign renal tumors. RCCs peak at sixties and seventies and its prevalence among males is two folds of its prevalence among females. RCCs have bad prognosis. The recurrence is seen in 40% of the cases, and the metastasis despite the early diagnosis was detected in 50% of cases. In present study, it was aimed to distribution of renal tumors in our hospital, discuss the prognostic factors such as the, pathological stage, nuclear grade and tumor diameter accompanied by literature information.

Patients and Method: By retrospectively scanning the records of Pathology Department of Medical Faculty, Fırat University, for the period between 1988 and 2009, 140 renal tumor cases were determined and the previous diagnoses, histological degrees, pathological stages of these cases were evaluated and the final diagnoses were taken as base in the present study. In pathologically staging (pT) of RCCs, TNM classification was used, whereas Fuhrman nuclear grading (FNG) was used in nuclear grading procedure. The patients were divided into different groups based on their genders and ages. The statistical analyses were performed in SPSS-12.0 software by using Chi-Square and Correlation tests.

Results: When compared to the literature in terms of the mean age, the present study involves relatively young population (mean age 57), and the majority was male (male/ female:1.1). The distributions of renal tumours, malign and benign subtypes, and RCC subtypes show similarities with the general literature. When examining the RCCs statistically, no significant relationship was found between diagnosis and age, and between nuclear grade and tumor diameter (p>0.05). In the present study, the RCCs with largest diameter were papillary type (9,78cm) ones, whereas the RCCs with lowest diameter values were classic type. A statistically significant relationship was observed between the benign, borderline and malign tumor diagnoses and diameters (p= 0.023). It was determined that approximately one-four of RCC cases were in highly pathological stage (21,6%, pT3a-3b). A direct proportional and statistically significant relationship was found between nuclear grade and diameter (p=0,002).

Conclusion: RCCs have poor prognosis and their frequency is increasing. Pathological stage, nuclear grade and diameter are the leading factors affecting the prognosis. As in our study, in retrospective studies involving old ages and not enough sampling, tumor diameter may be used as an alternative prognostic factor for pathological staging in tumors with a stage above pT2.

\r\n Objective: Early diagnosis of cutaneous squamous cell carcinomas (CSCC) is the most important factor affecting prognosis and most patients have a good prognosis. Some patients defined as high-risk group have high rates of regional recurrence and distant metastasis, and follow an aggressive course. In addition, recently numerous studies have being performed for determining the importance of sentinel lymph node sampling, and sentinel lymph node (SLN) positivity has been associated with a poor prognosis. In this study, we aimed to determine prognostic importance of SLN outcomes in patients with high-risk patients diagnosed with CSCC.

\r\n Patients & Methods: A total of 29 patients who underwent excisional operation in various body regions with the diagnosis of CSCC between 2009 and 2017, with available complete clinical and pathologic data were included in the study. At least 9-month clinical follow-up results, high risk factors and sentinel lymph node biopsy outcomes of the patients were recorded and analyzed. Patients with at least one of the American Joint Committee on Cancer (AJCC) criteria were considered as high-risk group.

\r\n Results: Twenty-five of the 29 CSCC patients were in the high-risk group. SLN positivity rate was 12% (n: 3/25) in the high-risk CSCC patients, all patients in the low-risk group had negative SLNs. All patients with SLN positive underwent local complementary lymphadenectomy, and all of these patients were re-operated due to recurrence. The rate of recurrence was found as 100% (n= 3/3) in high-risk CSCC patients with positive SLN, and 18% (n= 4/22) in high-risk CSCC patients with negative SLN. High recurrence rates (41.6%) and SLN positivity were observed in patients with hand-foot localizations.

\r\n Conclusion: High rates of local recurrence may be seen during progression of the disease in SLN positive patients. Hand-foot localization of CSCCs can be considered as a high risk factor regardless of a tumor diameter should be above 0.6 cm.

\r\n Colloid cysts are rare benign tumors of the third ventricle and have a wide range of clinical representations from incidentomas to acute death.  The growth of these cysts is an uncommon event and may cause obstructive hydrocephalus that lead to sudden deterioration in the patient's condition and may cause life-threatening complications. The large colloid cyst of third ventricle caused sudden death of children due to clogging, diagnosed in vivo is a very rare case in literature. We are representing here a case which patient admitted to emergency room for sudden loss of consciousness. Even he had urgent ventriculostomy due to acute hydrocephalus development, brain death has occured because of 3rd ventricle colloid cyst.

Aim: In this study, we discuss the efficacy and safety of autologous hematopoietic stem cell transplantation
(AHSCT) for high-risk pediatric solid-tumor patients based on 1 2 years of experience.
Patients and Methods: The data of patients aged < 18 years with pediatric malignancies who underwent
AHSCT between January 2009 and July 2021 at the Pediatric Bone Marrow Transplant Unit were evaluated
retrospectively.
Results: Fifty-one patients (24 girls and 27 boys; median age, 7.8 years; range: 0.5–18 years) were
enrolled in the study; 20, 15, 8, 4, 2, and 2 patients had diagnoses of neuroblastoma, Ewing’s sarcoma,
Hodgkin’s lymphoma, non-Hodgkin’s lymphoma, germ cell tumor, and soft tissue sarcoma, respectively.
The median neutrophil and platelet engraftment times were 11 (8–45) and 16 (4–62) days, respectively,
and the median hospital stay was 38 (17–67) days. The median follow-up time was 2.83 (0.12–10.81)
years and the overall survival (OS) rate was 51.3 ± 10.3% for all patients; the median follow-up times
and survival rates for the Ewing’s sarcoma and neuroblastoma cases were 2.63 (0.12–10.55) years and
64.2 ± 14.9%, and 2.81 (0.31–7.91) years and 42.8 ± 12%, respectively. All four patients who received
the conditioning regimen of carboplatin, etoposide, and melphalan (CEM) died; 6 of 16 neuroblastoma
patients who received the busulfan and melphalan (Bu/Mel) regimen as a conditioning regimen died: the
median follow-up period of the Bu/Mel neuroblastoma patients was 3.08 (0.32–7.91) years and the OS
rate was 55.1 ± 13.8%.
Conclusion: Although the number of patients in this study was limited, AHSCT resulted in better survival
for Ewing’s sarcoma and neuroblastoma cases than reported for those who did not undergo AHSCT in
our clinic.

Aim: In the present study, the aim is to determine whether centromere protein H (CENPH) gene expression levels change in prostate carcinoma (PCa).
Materials and Methods: Prostate tissue sample of 40 patients with primary prostate cancer was used in the study. Hence, transcriptional analysis of the CENPH gene was conducted in the total paraffin embedded prostate tissues extracted from patients diagnosed with prostate cancer. The expression analyses were obtained from the comparison of the expressions within the tumoral and non-tumoral areas in the prostate tissue of the same patient.
Results: Separate RNA isolation was performed. Subsequent qRT-PCR analyzes were repeated three times and quality controls of the Ct values were performed on the obtained data. The Ct values of the expression of the housekeeping gene GAPDH and the target gene CENPH gene were compared in tissue (tumor and normal) and technical repeat groups. There was no statistically significant difference in CENPH gene expression between tumor and normal tissue specimens in prostate cancer. Moreover, on investigating the causes of death, in none of the patients PCa related death was determined. 
Conclusion: In our study, we could not find any relationship with prostate cancer tumorogenesis in CENPH gene expression anomalies. However, some cancers (non-small cell lung cancer, colon cancer, etc) with high CENPH gene expression are associated with tumor aggressiveness, poor prognosis and drugresistance. More studies are needed on CENPH gene expression and its effect on prostate cancer.

ABSTRACT

Objective: Endometrial cancer is the most common malignancy of the female genital tract and the fourth leading cancer among women. Our aim is to share the surgical treatment and results of endometrial cancer cases in our gynecological oncology clinic.

Material and Methods: In this study, the records of 164 endometrial cancer patients operated by the same surgical team between 2009-2019 were reviewed retrospectively. The clinical, surgical and histopathological features of the patients are presented here. Four patients who had sarcoma as a result of pathology, 7 patients who underwent complementary surgery and 1 patient with a second primary tumor were not included in the study.

Results: The mean age of the patients included in our study was 61.3 and the mean body mass index was 25.8. According to the postoperative pathology results; mean tumor size was 3.4 cm and mean number of collected lymph nodes was 28.8. Lymph node metastasis was observed in 19 patients and all of the metastases were in pelvic lymph nodes. Endometrioid type adenocarcinoma was seen in 81% of the patients. Myometrial invasion > 50% in 81 patients (49.4%). Twenty patients (12.2%) had cervical involvement, 11 patients (6.7%) had adnexal involvement and 28 patients (17.1%) had lymphovascular area invasion. 76 patients (46.3%) were grade 1, 61 patients (37.2%) were grade 2, 19 patients (11.6%) were grade 3. When the patients were staging according to the FIGO system in 2009, 70 (42.7%) stage 1A, 58 (35.4%) stage 1B, 12 (7.3%) stage 2, 3 (1.8%) stage 3A 17 patients (10.4%) were stage 3C1 and 4 patients (2.4%) were stage 4.

Conclusion: Endometrial cancer is the most common gynecological cancer, and it is usually diagnosed at an early stage as a result of early signs. Tumor size, depth of myometrial invasion and histopathologic grade are used to evaluate the risk of the disease, but studies with a higher number of high stage patients will be more useful in determining the risk.

Objective: Pap smear test is a commonly used and effective screening method in detection of cervical cancer and its precursor lesions. There is a very limited number of studies on use of Pap smears in diagnosis of the endometrial carcinomas. We have aimed to investigate the incidence rate of atypical endometrial cells in Pap smears of the patients diagnosed with endometrial carcinoma and the correlation between these cells and clinicopathological parameters.

Material and methods: In this study, patients who were diagnosed with endometrial carcinoma and who had smear sampling between January 2015 and September 2017 were examined retrospectively. Histological type, nuclear grade and Pap smear results of endometrial carcinoma cases were evaluated.

Results: Pap smear sampling was concurrently performed in 59 of the 97 patients diagnosed with endometrial carcinoma. The ages of the patients who underwent smear sampling ranged between 42 and 82 years (mean 57.43±9.08 years). The menopausal status evaluation of the women revealed that 12 (20.3%) and 47 (79.7%) patients were premenopausal and postmenopausal, respectively. Endometrioid type carcinoma was encountered in 51 (86.4%) patients as the most commonly found histological type. Serous, clear cell and mucinous carcinomas were determined in 6 (10%), 1 (1.8%) and 1 (1.8%) patients, respectively. The results of Pap smear tests were atypical in 24 (40.7%) patients whereas normal results were obtained in 35 (59.3%) patients. Nuclear grade assessment of the carcinomas showed that grade 1, grade 2 and grade 3 carcinomas were discovered in 24 (40.7%), 25 (42.3%) and 10 (17%) patients, respectively. The rate of the atypical endometrial cells encountered by Pap smears has increased as grade of the tumors increased.

Conclusion: We have concluded that the detection rate of atypical cells by Pap smear in endometrial carcinomas is considerably high. The incidence of atypical cells is higher in nonendometrioid and high-grade carcinomas.

Aim: Investigate the role of Magnetic Resonance Imaging (MRI) in the evaluation of response of the locally
advanced rectal cancer to the chemoradiotheraphy (CR T).
Patients and Methods: T2-weighted and Diffusion Weighted Imaging (DWI) of 24 cases with locally advanced
rectal cancer who have undergone total mesorectal excision 6-8 weeks following the CRT between 2015 and
2020 were evaluated retrospectively. The evaluated radiological parameters were as follows; Tumor morphology,
localization, length, mrT/mrN stages, and extramural vascular invasion (EMVI). Post-CRT MRI residue scoring
was performed (0: No residual tumor, 1: No significant residual tumor, fibrotic wall thickening, 2: Residual tumor
present). Regression grading was as follows; 1: No tumor, 2: Good response, mostly fibrosis, 3: Fibrosis and
mucin more than 50%, 4: Slight response, 5: No response.
Results: There was a significant decrease in the craniocaudal length of tumor and a significant increase
in the mean ADC of tumor after CRT (p=0.001). A significant and high correlation was observed between
histopathological T (pT) and post-CRT mrT (r=0.54, p=0.006). There was a significant correlation between pre-
CRT EMVI and perineural invasion (PNI) (r=0.53, p=0.008). A significant correlation was found between residue
scoring and regression grading (r=0.6; p=0.001), pT (r=0.48; p=0.02), and tumor length (r:0.51; p=0.01). There
was a significant correlation between regression grading and EMVI (r=0.43, p=0.036), PNI (r=0.46, p=0.02), pT
(r=0.41; p=0.048), pN (r=0.55; p=0.006), and metastatic/total lymph node ratio (r=0.46; p=0.02).
Conclusion: Post-CRT MRI is highly correlated with postoperative pathological evaluation of the locally
advanced rectal cancer. MRI is highly successful in re-staging as well as primary staging. The evaluation of
treatment response by MRI regression grading may contribute to the surgical planning.

Aim: Autologous bone harvesting is the gold standard for grafting in a variety of orthopaedic procedures.
The aims of this study were to introduce an alternative technique of K-wire guided, multidirectional
percutaneous bone graft harvesting with Jamshidi from the anterior iliac crest, and to put forward the early
comparative clinical results of this technique.
Patients and Methods: 38 patients, who underwent a variety of hand surgeries in which bone grafting was
required between January and November 2013, were included in this retrospective, comparative study.
The included diagnoses of the patients were; non-unions of hand and wrist bone fractures, and benign
bone tumors. The prospectively collected data of patients were retrospectively evaluated in two groups.
Iliac crest autograft harvesting were performed with a standardized open technique, and with a novel
percutaneous technique -which will be described in the subsequent section- in group I, and II, respectively.
The mean age of the patients was 29.6 +/- 6.4, and 28.6 +/- 8.2 in group I, and II, respectively. The patients’
postoperative pain related with the perception of the pain and surgical scar, were evaluated according to the
graded Visual Analogue Scale; at postoperative 6th months. Statistically , Mann-Whitney U test was used.
Results: There were no major postoperative complications in the percutaneous group. Regarding pain,
mid-term at postoperative 6th months, VAS scores were found to be lower in group II than in group I,
significantly (p< 0.05).
Conclusion: The novel K-wire guided bone graft harvesting with Jamshidi from the iliac crest is a safe and
patient-friendly method in terms of postoperative pain reduction. This technique is useful in small joint and
bone surgeries, requiring bone grafting. The results of this study should be further supported with higher
level of evidence studies.

\r\n Brown tumors are benign, but locally aggressive tumors that may emerge as a rare complication of prolonged hyperparathyroidism. They may be clinically and radiologically confused with bone metastases. Browns tumors show increased metabolic activity on F-18 FDG-PET/CT just as metastatic bone lesions. In this study, we present a patient who underwent PET/CT to seek a primary focus with the presumed diagnosis of  multiple bone metastasis, and Brown tumor was suspected because no primary focus was detected on imaging and increased FDG enhancement was seen in parathyroid locations, and the diagnosis was confirmed with further investigations. Herein, we aimed to underline that Brown tumors should be kept in mind in the differential diagnosis in patients who are clinically and radiologically considered to have bone metastasis. 

Epidermoid cyst refers to the implantation of epidermal elements into the dermal and deeper tissues. In head and neck, incidence ranges from 1.6 to 7%. In the tonsillar area it is extremely rare i.e less than 0.01%. They occur in fetal period  as congenital lesion or as an acquired lesion  either due to a trauma or  as post surgery implant. In this case report, we will discuss the epidermoid cyst, in a 46-year-old male who presented with history of pain in the throat with previous history of bilateral tonsillectomy. 

Purpose:

Primary and metastatic digestive system malignant melanomas are extremely rare. In our study, we aimed to compare lymph node metastasis with clinical and pathological parameters in gallbladder, stomach, small intestine and anorectal region malignant melanomas.

Materials and methods:

This retrospective study included 20 cases diagnosed with malignant melanoma in the gastrointestinal tract organs between January 2010 and January 2020 at XXXXXXXXXXXX. In our study, we wanted to evaluate the relationship between regional lymph node metastasis and age, gender, tumor localization, tumor size, extraintestinal melanoma history, melanin pigment, neutrophil-lymphocyte ratio and post-diagnosis life span in primary and metastatic malignant melanoma cases. We also reviewed the origin and literature of the cells from which melanoma originates in the digestive system.

Results:

There was a statistical relationship between tumor diameter and regional lymph node metastasis (p =0.000). As the tumor diameter increased, the lymph node metastasis rate increased. There was a relationship between survival and gender, tumor localization, distant metastasis, primary and metastatic digestive system melanoma (all p <0.05). Most of the men and those who did not metastasize away from the digestive system were alive. All patients with melanoma metastases to the digestive system and all patients with gallbladder and small intestine localization were alive. Our 70 year old patient with gallbladder primary malignant melanoma was the oldest patient we could identify in the literature.

Conclusions:

Regardless of cutaneous or origin, all melanomas originate from melanocytes, cells derived from embryological nerve crest. Malignant melanoma can be primary in every region, more frequently in the anorectal region in the gastrointestinal tract. The most common metastasis is to the small intestine. Accurate diagnosis is vital in places where it is rarely seen, such as the digestive system. Recently, in metastatic melanoma, immuno-oncological agents are used in adjuvant therapy to help prevent metastatic spread of the disease. Thanks to these treatments, it is reported that more than half of patients with melanoma who have the risk of metastasis after surgical resection provide recurrence-free survival. Although it is very rare, it should be kept in mind that there may be primary or metastatic malignant melanoma in the evaluation of digestive system biopsies.

Aim: Mesenchymal tumors of the gastrointestinal tract other than gastrointestinal stromal tumors are rare and most of them are benign. The aim of this study to reveal the clinical and pathological features of non-gastrointestinal stromal tumor mesenchymal tumors of the gastrointestinal tract.

Materials and Methods: All gastrointestinal endoscopic and surgical resection materials, between 2008-2018, were retrospectively reviewed. Cases diagnosed with mesenchymal tumor other than gastrointestinal stromal tumors were included.

Results: Twenty four lipomas, 14 inflammatory fibroid polyps, six leiomyomas, four lymphangiomas, four hemangiomas, four schwannomas, two neuromas, two malignant melanomas, one leiomyosarcoma, one granular cell tumor and one Kaposi sarcoma were detected. The median ages of the cases were 61 years (29-87), the median tumor size was 1.5 cm (0.2-14). Thirty seven (58.7%) cases were female and 26 (41.3%) were male. They caused nonspecific symptoms. No recurrence or metastasis was detected after excision in benign tumors regardless of the pathological diagnosis.

Conclusion: Non-gastrointestinal stromal tumor mesenchymal tumors of the gastrointestinal tract are mostly small and benign tumors that can be seen at any age and are frequently seen in women. The most common ones are lipomas and inflammatory fibroid polyps. Most gastric tumors cause dyspeptic complaints and intestinal tumors cause abdominal pain, nausea or vomiting, as well as some of the intestinal tumors lead to serious, even fatal clinical situations such as acute and chronic bleeding, obstruction, perforation, volvulus or intussusception. For benign tumors’ treatment, excision is sufficient, they do not exhibit recurrence or metastasis.

Purpose: It was aimed to present the clinical and functional results of the patients who underwent tumor resection and endoprosthetic reconstruction due to malignant tumor around the elbow.

Methods: 14 patients who underwent tumor resection and endoprosthetic reconstruction due to malignant tumor in the elbow circumference between 2011-2018 in our clinic were included in the study. While 4 of the patients were primary tumors (1 fibromixoid sarcoma, 1 leimyosarcoma, 1 multiple myeloma and 1 ewing sarcoma), 10 were distant organ metastases (4 breast cancer, 3 lung cancer, 1 stomach cancer, 1 renal cell cancer and 1 thyroid cancer). Musculoskeletal Tumour Society (MSTS) score and Mayo elbow performance score (MEPS) and survival were evaluated.

Results: The minimum follow-up period of the patients was 7 months, and the maximum follow-up period was 55 months. The mean MEPS score of the patients was 67.5 ± 12.0 (range, 45-90), and the mean of the MSTS score was 19.4 ± 2.3 (range, 16-24). Recurrence occurred at follow-up in 3 patients and exitus at follow-up in 7 patients. In this study, the median survival time of the patients was 44 months. The 1-year survival rate was 70.1% while the 3-year survival rate was 54.5%.

Conclusion: Pain and functional results are satisfactory in patients who undergo tumor resection and endoprosthetic reconstruction due to malignant tumor around the elbow. In the future, studies with larger patient series are needed.

Aim: We aimed to retrospectively analyze and present the findings of patients diagnosed with esophageal
cancer and staged using 18F-Fluorodeoxyglucose (18F-FDG) Positron Emission Tomography/Computed
Tomography (PET/CT) imaging.
Patients and Methods: Thirty-seven patients diagnosed with esophagus who were staged with 18F-FDG
PET/CT in our hospital between February 2015 and February 2020 were included in this study. Patients'
age, gender, localization of the primary tumor and 18F-FDG PET/CT maximum standardized uptake value
(SUVmax), findings of metastases to mediastinal, abdominal and cervical lymph nodes, lung, liver, bone and
other areas were retrospectively evaluated as.
Results: The meanage of the patients was 66,97 ± 14,54 years. 20 patients (54%) were male, 17 patients
(46%) were female. 10 patients (27%) had upper esophagus tumors, 23 patients (62%) had lower esophagus
tumors, 4 patients had middle esophageal tumors (11%). The pathological diagnosis of 23 patients was
squamous cell ca, 14 patients were adeno ca. The mean of primary tumor SUV max was measured as 14,09
± 6,36 in all patients. The mean primary tumor SUVmax of the patients diagnosed with squamous ca was
14,51 ± 6,63, and the mean of primary tumor SUV max of the patients diagnosed with adeno ca was found to
be 13,40 ± 6,03. Progression was observed in 7 of 9 patients whose treatment and follow-ups were continued
in our hospital, and regression was observed in 2 of them.
Conclusion: In the initial staging of patients diagnosed with esophageal ca, 18F-FDG PET/CT is an
increasingly useful imaging method. Our study supports this.