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Featured researches published by Nurettin Boran.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2003

Endometrial stromal sarcoma of the uterus: analysis of 25 patients

Ali Haberal; Fulya Kayikcioglu; Nurettin Boran; Eray Caliskan; Nejat Ozgul; M. Faruk Köse

OBJECTIVE To analyze the prognostic factors in endometrial stromal sarcoma (ESS). METHODS Prognostic factors and adjuvant treatment of endometrial stromal sarcoma in 25 patients were evaluated retrospectively. RESULTS The mean age of the group was 43. In 58% of the patients, the presenting sign was vaginal bleeding. The median total survival was 55 months while the disease free survival (DFS) was 49 months. Disease recurred in eight patients, in three of whom tumors were confined to the pelvis. Seventeen patients were alive without disease. Four patients died because of the disease. The 5-year survival rate for patients with low-grade (LGESS) disease was 92%, and 85% in high-grade (HGESS) disease. CONCLUSION In multivariate analyzes, tumor grading was the only prognostic factor in endometrial stromal sarcoma (P=0.0026).


Gynecologic and Obstetric Investigation | 2000

Accuracy of frozen section diagnosis in borderline ovarian malignancy

Fulya Kayikcioglu; Ö. Pata; S. Cengiz; Gökhan Tulunay; Nurettin Boran; Serdar Yalvac; M.F. Köse

This study was conducted to determine the accuracy of frozen section diagnosis in borderline ovarian tumors. Thirty-three patients were evaluated on the basis of frozen sections between February 1992 and December 1997. Frozen section diagnosis and final diagnosis were divided into three categories: for frozen section diagnosis: 1 = benign, 2 = borderline, 3 = ‘at least’ bordeline, and for final diagnosis: 1 = benign, 2 = borderline, 3 = cancer. Three patients with a benign diagnosis according to their frozen sections were reclassified as borderline in the final diagnosis and all of them were of the mucinous type. The frozen section diagnosis of tumors of borderline malignancy was inaccurate in 3 of 23 patients. Four of 7 patients with at least borderline according to their frozen section diagnosis had invasive cancer at the final diagnosis. The correlation between frozen section diagnosis and final pathological examination was 72.7% (24/33). We found 9% (2/22) inaccurate results in the serous type and 36.6% (4/11) in the mucinous type. The sensitivity and specificity of frozen section diagnosis were found to be 86.95 and 57.14%, respectively. We concluded that frozen section evaluation in identifying a borderline ovarian malignancy is accurate enough to exclude the presence of a benign pathology.


Gynecologic Oncology | 2003

Primary choriocarcinoma of the uterine cervix in a postmenopausal patient: a case report.

Cem Baykal; Gokhan Tulunay; Dilek Bulbul; Nurettin Boran; Mehmet Faruk Köse

BACKGROUND Primary cervical choriocarcinoma seen in a postmenopausal patient is a very rare entity. CASE Primary choriocarcinoma of the uterine cervix was diagnosed in a 54-year-old woman. She had admitted to our clinic with vaginal bleeding and had been postmenopausal for 1 year at the time of diagnosis. A cervical tumoral mass was seen in her pelvic examination and cervical biopsy revealed squamous cell carcinoma of the cervix. Pelvic examination under anesthesia was done and patient was accepted as FIGO Stage IIA. Type III hysterectomy with bilateral salphingoopherectomy and bilateral pelvic-paraaortic lymph node dissection was carried out. Postoperative pathological evaluation of the surgical specimen showed that case was a primary choriocarcinoma of the cervix. CONCLUSION This is one of the few reported cases of cervical choriocarcinoma in a postmenopausal patient. The most appropriate theory for the development of this tumor is metaplastic differentiation of the tumor from another histologic type.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2013

Accuracy of frozen-section examination for myometrial invasion and grade in endometrial cancer

Taner Turan; Emire Oguz; Eylem Ünlübilgin; Gökhan Tulunay; Nurettin Boran; Omer Demir; M. Faruk Köse

OBJECTIVE To evaluate the accuracy of frozen section (FS) analysis in endometrial cancer. STUDY DESIGN The medical records of 816 patients with stage IA-IVB endometrial carcinoma were evaluated. Concordance of the frozen section examination and postoperative evaluation in terms of the depth of myometrial invasion (MI) and grade was assessed. RESULTS The mean age of the patients was 58.1 years. Postoperative pathology revealed endometrioid type tumor in 756 patients. Concordance of intraoperative and postoperative pathology results in terms of grade was 89%. This rate was 96.8% for grade 1, 86% for grade 2 and 91.3% for grade 3 tumors. Sensitivity and specificity of intraoperative evaluation for grade 1, grade 2 and grade 3 were 89.3%, 91.2%, 77.8% and 93.1%, 96.1%, 99.5%, respectively. Intraoperative and postoperative determination of MI was consistent in 85.4% of patients. MI was assessed accurately in 78.5% of patients with no involvement of myometrium and in 90.5% and 95.3% of patients with myometrial invasion <1/2 and ≥1/2, respectively. Sensitivity and specificity of FS in prediction of the absence of MI, MI<1/2 and ≥1/2 were 60%, 91.5%, 88.8% and 96.6%, 88.3%, 98.3%, respectively. The accuracy of myometrial invasion was affected by the postoperative grade. Concordance was higher in grade 2 and 3 than grade 1 tumors. CONCLUSION The accuracy of intraoperative pathologic evaluation in endometrial cancer is reasonably high. For that reason, results of the intraoperative pathologic examination should be taken into consideration primarily in the management for lymphadenectomy.


Acta Oncologica | 2002

Is frozen-section diagnosis a reliable guide in surgical treatment of stage I endometrial carcinoma?

Fulya Kayikcioglu; Nurettin Boran; M. Mutlu Meydanli; Gökhan Tulunay; Faruk M. Köse; Dilek Bulbul

Frozen-section diagnoses and paraffin-section diagnoses were compared in 154 patients in stage I endometrial adenocarcinoma. In 134 (87%) of the 154 patients (p < 0.001), a corresponding depth of myometrial invasion was found, and in 132 (85.7%) patients the same tumor grade was established (p < 0.001). Frozen-section diagnosis of stage I endometrial adenocarcinoma is reliable for estimation of the extent of disease and accurately identifies patients who require surgical staging.


Cancer Investigation | 2002

Embolization of Uterine Artery in Terminal Stage Cervical Cancers

Serdar Yalvac; Fulya Kayikcioglu; Nurettin Boran; Gökhan Tulunay; M. Faruk Köse; Sadik Bilgic; Ali Haberal

Ligation of the hypogastric artery has been a standard and effective procedure in controlling massive bleeding in advanced cervical carcinoma. The authors wanted to demonstrate the selective use of embolization of hypogastric or uterine artery to achieve the same end result—the stoppage of vaginal bleeding. In a number of cases, surgical approach may not be appropriate either because of the critically ill patient or because of the highly deformed pelvic anatomy due to radiotherapy or to the recurrence of cancerous tissue. As an alternative therapy, we used selective embolization of the uterine artery in eight patients. In all the patients, embolization served to control bleeding. As the bleeding was brought under control, a gradual recovery of the patient was generally observed. The most common side-effect was temporary severe pain related to ischemia of tumoral tissue. Embolization may be regarded as an effective procedure, which can be used to control massive bleeding in selected cervical cancer patients.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2012

Best predictors of survival outcome after tertiary cytoreduction in patients with recurrent platinum-sensitive epithelial ovarian cancer

Deniz Hizli; Nurettin Boran; Saynur Yılmaz; Taner Turan; Şadıman Kıykaç Altınbaş; Bülent Çelik; M. Faruk Köse

OBJECTIVE To evaluate the efficacy of tertiary cytoreduction (TCR) on survival and to determine prognostic factors which may influence surgical and survival outcome. STUDY DESIGN Twenty-three consecutive patients who had recurrent platinum-sensitive epithelial ovarian cancer and underwent TCR between January 1999 and January 2011 were evaluated. Factors which impact on TCR outcome and survival were determined by statistical analysis. RESULTS TCR was optimal (< 1cm residual tumor) in 15 of the 23 patients (65.2%) and suboptimal in 8 patients (34.8%). None of the clinicopathologic factors was associated with TCR outcome. On the contrary, TCR outcome (optimal vs suboptimal) was independently associated with survival in univariate analysis (P=0.018). CONCLUSION There is not a good predictor of TCR outcome but TCR seems to be beneficial for patients in whom optimal surgery can be achieved. Therefore, preoperative assessment of patients and weighing the potential survival benefit against potential surgical risks are very important for patient selection.


Journal of Gynecologic Oncology | 2013

Comparison of advanced stage mucinous epithelial ovarian cancer and serous epithelial ovarian cancer with regard to chemosensitivity and survival outcome: a matched case-control study

Emine Karabuk; M. Faruk Köse; Deniz Hizli; Salih Taşkın; Burak Karadag; Taner Turan; Nurettin Boran; Ahmet Özfuttu; U. Fırat Ortaç

Objective The aim of this study was to compare clinicopathologic characteristics, surgery outcomes and survival outcomes of patients with stage III and IV mucinous epithelial ovarian cancer (mEOC) and serous epithelial ovarian carcinoma (sEOC). Methods Patients who had surgery for advanced stage (III or IV) mEOC were evaluated retrospectively and defined as the study group. Women with sEOC who were matched for age and stage of disease were randomly chosen from the database and defined as the control group. The baseline disease characteristics of patients and platinum-based chemotherapy efficacy (response rate, progression-free survival and overall survival [OS]) were compared. Results A total of 138 women were included in the study: 50 women in the mEOC group and 88 in the sEOC group. Patients in the mEOC group had significantly less grade 3 tumors and CA-125 levels and higher rate of para-aortic and pelvic lymph node metastasis. Patients in the mEOC group had significantly less platinum sensitive disease (57.9% vs. 70.8%; p=0.03) and had significantly poorer OS outcome when compared to the sEOC group (p=0.001). The risk of death for mEOC patients was significantly higher than for sEOC patients (hazard ratio, 2.14; 95% confidence interval, 1.34 to 3.42). Conclusion Advanced stage mEOC patients have more platinum resistance disease and poorer survival outcome when compared to advanced stage sEOC. Therefore, novel chemotherapy strategies are warranted to improve survival outcome in patients with mEOC.


International Journal of Gynecological Cancer | 2016

The Factors Predicting Recurrence in Patients With Serous Borderline Ovarian Tumor.

Isin Ureyen; Alper Karalok; Tolga Tasci; Osman Turkmen; Nurettin Boran; Gökhan Tulunay; Taner Turan

Objective In this study, we aimed to demonstrate the characteristics, recurrence rates, survival, and factors associated with survival of patients with serous borderline ovarian tumor (BOT) who were operated on in a single institution. Our secondary goal was to evaluate the necessity of staging surgery and the importance of a comprehensive lymphadenectomy in these patients. Materials and Methods The patients who were diagnosed in our institution between January 1990 and April 2014 with a final diagnosis of serous BOT were evaluated retrospectively. Kaplan-Meier method was used for analysis of progression-free survival (PFS). Univariate Cox proportional hazards model and log rank test were used for analysis of continuous and categorical variables affecting survival, respectively. Results One hundred twenty-one (75%) patients underwent staging surgery. Stage I disease was observed in 63%, stage III was observed in 11% of the patients, and only 0.6% of patients had stage II disease. Among 162 patients, 72 patients (44%) had conservative surgery. Eight (4.9%) patients had recurrence, one of which was invasive. All recurrences were in the patients who had conservative surgery. Median follow-up of the patients was 57 months (range, 37–270 years). Five- and 10-year PFS rates were 94.9% and 92.8%, respectively. In the univariate analysis of patients with serous BOT, PFS was worse in the presence of positive para-aortic lymph nodes, positive abdominal cytology, and conservative surgery (P = 0.008, P < 0.001, P = 0.007, respectively). The patients having noninvasive implant and advanced-stage disease had a tendency to have worse PFS (P = 0.067, P = 0.069, respectively). Conclusions Staging surgery generally gives us an idea of the probability of recurrence but not an idea of overall survival. Therefore, staging surgery including lymphadenectomy could be suggested to have information about the probability of recurrence and to be able to detect patients with an invasive implant that is the only probable factor affecting overall survival.


Journal of The Turkish German Gynecological Association | 2013

Small cell carcinoma of the endometrium: A report of three cases.

Isin Ureyen; Alper Karalok; Taner Turan; Nurettin Boran; Omer Lutfi Tapisiz; Heyecan Ökten; Mehmet Faruk Köse; Gökhan Tulunay

Small cell carcinoma (SCC) is a tumour that occurs mostly in the lung, but may be found in any organ in the body. Since SCC of the endometrium is rare, clinical behaviour and management of the disease is not well-defined. The only known prognostic factor is the stage of the disease. Here, we reported three patients with SCC of the endometrium, their management and the follow-up period.

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Ahmet Özfuttu

Military Medical Academy

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Omer Lutfi Tapisiz

University of Texas Medical Branch

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