Person: ÖZ ATALAY, FATMA
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ÖZ ATALAY
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FATMA
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Publication Primary myeloid sarcoma of ovary: A case report and review of the literature(Federation Turkish Pathology Soc, 2021-09-01) Akyol, Sevda; Öz Atalay, Fatma; ÖZ ATALAY, FATMA; Bursa Uludağ Üniversitesi/Tıp Fakültesi.Myeloid sarcoma (granulocytic sarcoma or chloroma) is a tumor formed by myeloid precursor cells in any localization other than the bone marrow. It can occur without underlying acute myeloid leukemia (AML) or other myeloid neoplasms. Herein, we present a forty-two-year-old female patient who underwent surgery because of a left adnexal mass. Microscopic examination of the specimen revealed cord-like arrangement of the tumor cells with a diffuse growth of small blue cells effacing the ovarian stroma. Adult granulosa cell tumor was in the differential given the scanty cytoplasm of the tumor and in fact was the diagnosis of the referring institution. Further microscopic evaluation with immunohistochemical analysis at our institution revised the diagnosis to myeloid sarcoma. Myeloid sarcoma is a difficult tumor to diagnose due to its rarity, especially in the absence of a history of leukemia, and correct tissue diagnosis is essential for its treatment.Publication Omental micrometastasis in endometrial cancer(Karger, 2019-01-01) Bayrak, Mehmet; Yılmaz, Alpay; Yılmaz, Fatih; İlhan, Olcay; Atalay, Fatma Öz; Ozan, Hakan; Bayrak, Mehmet; Yılmaz, Fatih; İlhan, Olcay; ÖZ ATALAY, FATMA; OZAN, HAKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Jinekolojik Onkoloji Kliniği; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Kliniği; 0000-0002-9910-8032; 0000-0002-5820-3754; DUU-5336-2022; C-5252-2015; CXA-2700-2022; JHC-4482-2023; DKZ-4159-2022Introduction: Although there are several reports on omentum metastasis, limited studies have evaluated omental micrometastases, particularly isolated microscopic metastases in endometrial cancer (EC). We performed this study to assess the frequency of omental micrometastasis in EC, especially when the omentum is the only site of extrauterine spread. Methods: A retrospective study was conducted to assess cases of EC with an omental sample during primary surgical treatment for EC at the Gynecological Oncology Unit, Uludag University Hospital, Bursa, Turkey, between January 2005 and May 2018. Results: In total, 435 patients fulfilled the inclusion criteria, which comprised a complete surgical staging. The prevalence of omental metastases was 5.3% (n = 23), regardless of the subtype or clinical stage. Omental micrometastasis was detected in four cases (17.4%). In half of these patients, the omentum was the only site of disease outside the uterus, with an estimated 0.46% of isolated omental involvement. The grade of the endometrioid tumor was found to be statistically correlated with omental metastases (p = 0.01). There was a significant correlation between omental metastasis and positive peritoneal cytology, as well as adnexal involvement (p = 0.001 and p = 0.03, respectively). Conclusion: We recommend omentectomy routinely in serous EC. In addition, we suggest selective omentectomy in patients with EC who have concomitant adnexal involvement or grade 3 tumors.Publication The impact of ki-67 index, squamous differentiation, and several clinicopathologic parameters on the recurrence of low and intermediate-risk endometrial cancer(Assoc Basic Medical Sci Federation Bosnia & Herzegovina Sarajevo, 2021-01-01) Ocak, Birol; Atalay, Fatma Oz; Sahin, Ahmet Bilgehan; Ozsen, Mine; Dakiki, Bahar; Ture, Seray; Mesohorli, Merve; Odman, Hikmet Utku; Tanriverdi, Ozgur; Ocakoglu, Gokhan; Bayrak, Mehmet; Ozan, Hakan; Demiroz, Candan; Sali, Seda; Orhan, Sibel Oyucu; Deligönül, Adem; Çubukcu, Erdem; Evrensel, Turkkan; Ocak, Birol; OCAK, BİROL; Sahin, Ahmet Bilgehan; ŞAHİN, AHMET BİLGEHAN; Atalay, Fatma Oz; ÖZ ATALAY, FATMA; Ozsen, Mine; ÖZŞEN, MİNE; Dakiki, Bahar; DAKİKİ KORUCU, BAHAR; Ture, Seray; TÜRE AYDIN, SERAY; Mesohorli, Merve; Odman, Hikmet Utku; Ocakoglu, Gokhan; OCAKOĞLU, GÖKHAN; Bayrak, Mehmet; Ozan, Hakan; OZAN, HAKAN; Demiroz, Candan; DEMİRÖZ ABAKAY, CANDAN; Sali, Seda; SALİ, SEDA; Orhan, Sibel Oyucu; OYUCU ORHAN, SİBEL; Deligonul, Adem; DELİGÖNÜL, ADEM; Cubukcu, Erdem; ÇUBUKÇU, ERDEM; Evrensel, Turkkan; EVRENSEL, TÜRKKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0001-7537-1699; 0000-0002-7188-6115; 0000-0002-7846-0870; 0000-0002-5771-7649; 0000-0001-9255-2475; 0000-0002-1114-6051; 0000-0003-1600-333X; AEC-2238-2022; ABA-2897-2021; AAH-5180-2021; AAM-4927-2020; AAJ-8314-2021Endometrial endometrioid carcinoma (EEC) represents approximately 75-80% of endometrial carcinoma cases. Three hundred and thirty-six patients with EEC followed-up in the authors' medical center between 2010 and 2018 were included in our study. Two hundred and seventy-two low and intermediate EEC patients were identified using the European Society for Medical Oncology criteria and confirmed by histopathological examination. Recurrence was reported in 17 of these patients. The study group consisted of patients with relapse. A control group of 51 patients was formed at a ratio of 3:1 according to age, stage, and grade, similar to that in the study group. Of the 17 patients with recurrent disease, 13 patients (76.5%) were Stage 1A, and 4 patients (23.5%) were Stage 1B. No significant difference was found in age, stage, and grade between the case and control groups (p > 0.05). Body mass index, parity, tumor size, lower uterine segment involvement, squamous differentiation (SqD), and Ki-67 index with p<0.25 in the univariate logistic regression analysis were included in the multivariate analysis. Ki-67 was statistically significant in multivariate analysis (p = 0.018); however, there was no statistical significance in SqD and other parameters. Our data suggest that the Ki-67 index rather than SqD needs to be assessed for recurrence in patients with low- and intermediate-risk EEC.Publication Igg4-related disease of the ovary(Türk Patoloji Derneği, 2021-01-01) Akyol, Sevda; Öz Atalay, Fatma; Hasdemir, Seçil; Yerci, Ömer; AKYOL, SEVDA; ÖZ ATALAY, FATMA; HASDEMİR, SEÇİL; YERCİ, ÖMER; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı; 0000-0003-1769-7484; 0000-0002-3107-207X; 0000-0002-1275-7743; 0000-0001-7118-5258; CBY-0641-2022; FUC-3875-2022; GBY-7549-2022; EIS-5114-2022Immunoglobulin G4-related disease is characterized by dense fibrosis, obliterative phlebitis, and lymphoplasmacytic infiltration that contains abundant IgG4 positive plasma cells. It causes tumefactive lesions in the involved organs and is most commonly seen in the salivary glands, pancreas, and retroperitoneum. Ovarian involvement has been reported in only two cases. In our case, a 58-year-old female patient presented with abdominal distention and pain. Pelvic computed tomography revealed a soft tissue lesion compatible with the omental cake, several intraabdominal implants, and bilateral adnexal fullness. A laparotomy was performed under suspicion of peritoneal carcinomatosis secondary to bilateral adnexal mass. In the histopathologic examination, abundant lymphoplasmacytic infiltration and dense fibrosis were observed in both ovaries and the peritoneum. In the areas of greatest density, the density of IgG4-positive plasma cells was found to range from 40 to 50 per high-power field. The patient was accepted as suffering from probable IgG4-related disease because of the bilateral involvement of the ovaries and the histopathological findings. In conclusion, we present this case to draw attention to the fact that IgG4-related disease can also be seen in the ovary.Publication The ki-67 index and neutrophile-lymphocyte ratio are prognostic factors in patients with low-risk endometrial cancer(Mre Press, 2021-04-21) Çubukcu, Erdem; Şahin, Ahmet Bilgehan; Atalay, Fatma Öz; Ocak, Birol; Özşen, Mine; Abakay, Candan Demiröz; Özerkan, Kemal; Hasanzade, Ulviyya; Mesahorlı, Merve; Deligönül, Adem; Ozan, Hakan; Evrensel, Türkkan; ÇUBUKÇU, ERDEM; ŞAHİN, AHMET BİLGEHAN; ÖZ ATALAY, FATMA; OCAK, BİROL; ÖZŞEN, MİNE; DEMİRÖZ ABAKAY, CANDAN; ÖZERKAN, KEMAL; HASANZADE, ULVIYYA; Mesahorlı, Merve; DELİGÖNÜL, ADEM; OZAN, HAKAN; EVRENSEL, TÜRKKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Radyasyon Onkolojisi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Jinekolojik Onkoloji Anabilim Dalı.; 0000-0002-7846-0870; 0000-0001-7537-1699; 0000-0002-5771-7649; 0000-0001-5380-5898; AAH-9791-2021; K-2269-2016; AAM-4927-2020; ETP-1691-2022; JHC-4482-2023; HHA-1866-2022; AAI-1609-2021; AAH-3855-2021; EXU-7466-2022; FNB-4540-2022; ESM-4544-2022; DKZ-4159-2022; EXJ-0967-2022Objective: To investigate the prognostic factors comparing clinical, histopathological, and laboratory parameters in low-risk endometrial cancer (EC). Methods: In the present single-center study, multivariate Cox regression analysis was performed on retrospective clinical and laboratory data and histopathological features obtained from the re-evaluation of 253 patients with low-risk EC. Receiver operating characteristic curves (ROC) were plotted for neutrophile-lymphocyte ratio (NLR), platelet-lymphocyte ratio, lymphocyte-monocyte ratio and Ki-67 index for recurrence. Kaplan-Meier analysis was employed for survival rates. Results: The median age was 58.5 years (32.0-75.4). Most of the patients were obese and post-menopausal. In nearly half of the patients, lymphadenectomy was performed in addition to hysterectomy and oophorectomy. The median tumor size was 30 mm (range 2-80), and the median Ki-67 index was 25 (1-90). According to the ROC curve analysis, the cut-off values for the Ki-67 index, NLR, PLR, and LMR were determined as >= 22, >= 1.98, >= 115.3, and >= 4.71, respectively. The log-rank test revealed that the patients with a Ki67 index lower than 22% and NLR lower than 1.98 had statistically longer recurrence-free survival (RFS) (p = 0.002 for Ki-67 index and p = 0.004 for NLR). The multivariate analysis revealed that the Ki-67 index and NLR were statistically significant factors for RFS (p = 0.012 and p = 0.029, respectively). Conclusion: The present study highlights the prognostic implications of both the Ki-67 index and NLR in lowrisk EC.Publication Evaluation of cystic lesions of the pancreas based on clinicopathologic parameters(Carbone Editore, 2015-01-01) Atalay, Fatma Öz; Uğras, Nesrin; Aytaç, Berna; Yerci, Ömer; ÖZ ATALAY, FATMA; UĞRAŞ, NESRİN; AYTAÇ VURUŞKAN, BERNA; YERCİ, ÖMER; Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; AAH-9746-2021; AAH-2716-2021; JHC-4482-2023; EGD-8703-2022Aims: To identify demographic, histopathologic and immunohistochentical features of pancreatic cystic lesions, which could assist diagnosis of neoplastic ones.Materials and methods: Sixty-seven cystic lesions from pancreatic resections between 2001 and 2013 were studied. Patient demographics and cyst location and size were recorded. Forty-sir specimens with adjacent non-lesional parenchyma were evaluated for pancreatic intraepithelial neoplasia (PanIN). Neoplastic cysts were immunohistochemically tested for ki67, p53, and progesterone receptor. Ten high-power fields were examined to determine ki67 proliferative index (PI; average percentage of nuclear staining) and p53 status (<1% stained nuclei indicating negative). Presence/absence of progesterone receptor (PR)-positive nuclei in pericystic stromal cells Was recorded.Results: Eighteen (26.9%) of the 67 lesions were non-neoplastic and 49 (73.1%) were neoplastic. Serous cystadenomas (SCAs) were most common (n=23: 34.3%), and 59 (88%) of the patients were women. Mean ages for the mucinous cystic neoplasm (MCN) and SCA subgroups were 46.7 and 64.6 years, respectively, and these lesions tended to be in the pancreatic tail and head, respectively. ki67 PI was higher for non-invasive MCNs with high-grade dysplasia than low-grade dysplasia (20% vs. 4-6%, respectively). No neoplasms were p53-positive. Only MCNs were PR-positive. SCA was the lesion most frequently associated with PanIN.Conclusion: Age of patient and the location of cyst are distinctive features in neoplastic pancreatic cysts. Diameter of the cyst gives an idea about the malignancy potential of the lesions. In MCNs. considering the increased risk of multiple foci of varying degrees of dysplasia, ki67 proliferative index is useful as well as the adequate sampling of the cyst for the accurate diagnosis of these foci, particularly when the presence or degree of it cannot he adequately assessed in hematoxylin and eosin (HE)-stained sections.Publication Cutaneous fistulization of an ovarian mature cystic teratoma: An unusual occurrence(Karger, 2015-01-01) Atalay, Mehmet Aral; Orhan, Adnan; Atalay, Fatma Öz; Saydam, İlkay; Demir, Bilge Çetinkaya; Atalay, Mehmet Aral; ORHAN, ADNAN; ÖZ ATALAY, FATMA; Saydam, İlkay; ÇETİNKAYA DEMİR, BİLGE; Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Bölümü; Uludağ Üniversitesi/Tıp Fakültesi/Doğum ve Jinekoloji Bölümü; 0000-0002-9685-956X; 0000-0002-7558-8166; 0000-0001-6845-9991; AAH-9834-2021; V-5292-2019; GBG-9889-2022; JHC-4482-2023; DRD-3800-2022A bilobulated mature cystic teratoma (MCT) at the left ovary measuring 6 cm in diameter fistulized to the left lower quadrant of the anterior abdominal wall, contralateral to McBurney's point. This is the first reported case of a MCT fistulized to the skin. Symptoms, if present, usually depend on the size of the teratoma. However, most patients with a MCT are asymptomatic. Complications such as rupture of the cyst capsule are quite rare. Moreover, complication of fistulization is highly infrequent.Publication What should we do to optimise outcome in twin pregnancy complicated with placenta percreta? A case report(BMC, 2015-11-05) Atalay, Mehmet Aral; Atalay, Fatma Öz; Demir, Bilge Çetinkaya; Atalay, Mehmet Aral; ÖZ ATALAY, FATMA; ÇETİNKAYA DEMİR, BİLGE; Uludağ Üniversitesi/Tıp Fakültesi/Kadın Hastalıkları ve Doğum Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Anabilim Dalı.; 0000-0002-9685-956X; 0000-0001-6845-9991; AAH-9834-2021; A-8779-2013; JHC-4482-2023Background: Patients with morbidly adherent placenta (MAP) are under risk of massive bleeding. It readily necessitates very complicated surgery and massive blood transfusion, and even leads to mortality. Cesarean hysterectomy (CH) is the procedure that is acknowledged worldwide, since it helps to minimize complications.Case presentation: A patient with dichorionic twin pregnancy underwent to cesarean section (CS) due to preliminary diagnosis of placenta percreta at her 35th week of pregnancy. Both of the placentas were left in situ. The patient admitted with signs of infection. Emergency total abdominal hysterectomy was performed 7 weeks after CS. In the course of hysterectomy, 3 units of erythrocyte suspension and 2 units of fresh frozen plasma were transferred, whereas none was required during CS.Conclusion: Abandoning placenta in situ seems to be a logical alternative to the CH in patients with placenta percreta in order to minimize complications related to massive blood transfusion and surgical technique. However, it appears to increase maternal morbidity due to maternal infection in twin pregnancy.Publication Histopathological changes of neoadjuvant chemoradiation and relation with the pre-treatment tumor stage in rectal carcinoma(Gazi Univ, Fac Med, 2017-01-01) Özgün, Gonca; ÖZ ATALAY, FATMA; Ugraş, Nesrin; UĞRAŞ, NESRİN; Yerci, Ömer; YERCİ, ÖMER; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0002-7188-6115; AAH-2716-2021Objective: Neoadjuvant chemoradiotherapy has considered one of the standard treatment modalities for locally advanced rectal cancers. Chemoradiotherapy has a variety of different effects and responses on tumor, tumor bed and peritumoral tissues. The purpose of the present study was to evaluate the stromal responses in tumor bed between the different treatment modalities and different clinical T stages.Methods: Fifty-seven consecutive patients with median age of 62.4 years were treated for rectal adenocarcinoma between January 2005 and July 2012 in Uludag University Medical Faculty. Twenty-three of the patients were treated with neoadjuvant chemoradiation therapy and following surgery, 34 patients treated with surgery only.Results: When we compared the stromal responses in the tumor bed between the two different treatment modalities, the amount of fibrosis and intensity of inflammatory cell infiltration were found considerably marked. The existence of calcification, hemosiderin-laden macrophages and mucin lakes were found also significant marked. There was no difference found in between the patients with different clinical stages which were received neoadjuvant CRT.Conclusion: The stromal response in the tumor bed increases with the neoadjuvant chemoradiotherapy but the excess of the response doesn't have any relation with the clinical T stage.