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ÖZŞEN, MİNE

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ÖZŞEN

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MİNE

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Now showing 1 - 10 of 17
  • Publication
    Crystal storing histiocytosis forming a mass lesion in temporal lobe
    (Wolters Kluwer Medknow Publications, 2023-07-01) Özsen, Mine; ÖZŞEN, MİNE; TOLUNAY, ŞAHSİNE; Kocaeli, Hasan; KOCAELİ, HASAN; Tolunay, Şahsine; PARLAK, MÜFİT; Parlak, Mufit; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Nöroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Radyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Patoloji Anabilim Dalı.; 0000-0002-5771-7649
    Crystal storing histiocytosis is a disorder characterized by local or diffuse infiltration of histiocytes containing crystalline inclusions. This entity has been reported in several organs, however the involvement of the central nervous system (CNS) is extremely rare and to date only 7 cases of crystal storing histiocytosis (CSH) of CNS have been reported in the English literature. More than 90% patients with CSH had an underlying lymphoproliferative or plasma cell disorders, especially multiple myeloma, lymphoplasmacytic lymphoma or monoclonal gammopathy. Radiologically and intraoperatively, CSH may mimic an infectious process or neoplasm, hence its histopathological confirmation is important to facilitate appropriate treatment. In this report, we describe an additional case of crystal storing histiocytosis in a 48 year old female who presented with a mass lesion in the right temporal lobe of the cerebrum.
  • Publication
    A close look at our cases with parathyroidectomy: 11 years of experience
    (Edizioni Minerva Medica, 2022-06-01) Saraydaroğlu, Özlem; SARAYDAROĞLU, ÖZLEM; ÖZŞEN, MİNE; Kirdak, Turkay; Narter, Selin; NARTER, SELİN; Ertürk, Erdinç; ERTÜRK, ERDİNÇ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji Anabilim Dalı.; 0000-0002-5771-7649; AAJ-6536-2021
    BACKGROUND: Hyperparathyroidism is caused by parathyroid adenoma, hyperplasia or carcinoma. Parathyroid ade-nomas are the most common cause of parathyroid disease (85-88%) while atypical parathyroid adenomas and carcinomas are the least frequently seen parathyroid neoplasms which cause diagnostic difficulty. This series aims to identifiy lesions of parathyroidectomy specimens in our center and draw attention to borderline cases in between parathyroid adenoma and carcinoma.METHODS: The study included 638 parathyroidectomy materials diagnosed in our center between the years 2005 and 2016 and examined retrospectively, and all were included in the study.RESULTS: In all the 638 parathyroidectomy cases evaluated, 427 were diagnosed with adenoma, 117 with hyperplasia, 54 with normal parathyroid tissue, 32 with parathyroid neoplasm with uncertain malignant potential, 7 with parathyroid carcinoma and 1 with normal thyroid tissue.CONCLUSIONS: Parathyroid neoplasm with uncertain malignant potential defines cases with suspicious histopathological features of carcinoma but doesn't meet the criteria for parathyroid carcinoma. In our series, these cases are identified as atypical parathyroid adenoma. We present clinical and morphological features of our parathyroidectomy cases in an 11-year period and aim to raise concern about borderline cases in between adenoma and carcinoma. We think that such tumors, similar to the thyroid neoplasm classification, should be defined as parathyroid neoplasms with uncertain malignant potential and should be followed closely.
  • Publication
    Evaluation of incidence and histolopathological findings of soft tissue sarcomas in genitourinary tract: Uludag University experience
    (Brazilian Soc Urol, 2019-01-01) Vuruşkan, Berna Aytaç; Özşen, Mine; Coşkun, Burhan; Yalçınkaya, Ülviye; AYTAÇ VURUŞKAN, BERNA; ÖZŞEN, MİNE; COŞKUN, BURHAN; YALÇINKAYA, ÜLVİYE; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı; 0000-0002-5771-7649; 0000-0002-8242-9921; AAI-1609-2021; JCO-5169-2023; AAH-8924-2021; AAH-9746-2021; AAH-9704-2021
    Purpose: In this study we aimed to review urological soft tissue sarcomas of genitourinary tract that were diagnosed in our institution and their prognostic factors for survival.Materials and Methods: The clinical and pathological records of 31 patients who had diagnosis of soft tissue sarcomas primarily originating from the genitourinary tract between 2005-2011 were reviewed.Results: The most common site was kidney (17 cases, 54.8%), and most common diagnosis was leiomyosarcoma (11 cases, 35.4%). A total of 24 patients (77.4%) had surgical excision. The surgical margins were positive in 7 patients who presented with local recurrence after primary resection. Twelve patients developed metastatic disease. During follow-up (range 9-70 month), 26 of the 31 patients (88.9%) were alive. Significant survival differences were found according to histological type (p: 0.001), with lower survival rates for malignant fibrous histiocytoma. The tumor size, the presence of metastasis at the time of diagnosis and tumor localization were not statistically significant for overall survival.Conclusions: In our series, prostate sarcomas, paratesticular rhabdomyosarcoma and malignant fibrous histiocytoma had poor prognosis, especially in patients presenting with metastatic disease.
  • Publication
    Metastatic neoplasms to the breast
    (Sage Publications Inc, 2023-10-29) Özsen, Mine; Tolunay, Şahsine; Polatkan, Seyit Ali Volkan; Şenol, Kazım; Gökgöz, Mustafa Şehsuvar; ÖZŞEN, MİNE; TOLUNAY, ŞAHSİNE; POLATKAN, SEYİT ALİ VOLKAN; ŞENOL, KAZIM; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Genel Cerrahi Anabilim Dalı.; 0000-0001-6273-0664; JIT-5311-2023; AAI-1612-2021; FSB-8576-2022; KGQ-4411-2024; EWY-5692-2022
    Objective: When the clinical presentation is related to the metastatic mass and a radiologically solitary tumor focus is detected, especially in cases where clinical information is not taken into account or is insufficient, if a possible metastatic neoplasia is not kept in mind then it is possible to evaluate the tumor as a primary breast neoplasm. In this study, it is aimed to present our cases of non-hematopoietic metastatic neoplasms and to evaluate the clinicopathological features that may aid in distinguishing metastatic from primary neoplasms. Material and Methods: This study includes cases diagnosed with metastatic non-hematopoietic breast neoplasm in breast resection materials in our center, between the years 2010-2023. All cases were analyzed retrospectively by evaluating clinicopathological features. Results: Of the 15 subjects included in the study, 11 (73%) were female and 4 (27%) were male. The mean age of the patients were 46.9 ranged from 22 to 63 years. The most frequent metastatic malignancy was carcinoma (60%), followed by melanoma (33%) and sarcoma (7%). Of the 9 patients with metastatic carcinoma, the primary tumor originated from the lungs in 4, from gastrointestinal system in 2, female genital tract in 2, and kidney in 1 patient. Sarcoma diagnosis was given in a single patient and the histology was a leiomyosarcoma originating from kidney. Conclusion: A careful histomorphological and immunohistochemical evaluation and a detailed examination of the clinicoradiological data are critical to establish the right course in patient management, treatment plan and to correctly predict the prognosis.
  • 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-8314-2021
    Endometrial 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
    The ki-67 proliferation index predicts recurrence-free survival in patients with dermatofibrosarcoma protuberans
    (Assoc Basic Medical Sci Federation Bosnia & Herzegovina Sarajevo, 2021-01-01) Tanriverdi, Ozgur; Ozsen, Mine; ÖZŞEN, MİNE; Deligonul, Adem; DELİGÖNÜL, ADEM; Yazici, Serkan; YAZİCİ, SERKAN; Cetintas, Sibel Kahraman; Yalcinkaya, Ulviye; YALÇINKAYA, ÜLVİYE; Sahin, Ahmet Bilgehan; ŞAHİN, AHMET BİLGEHAN; Orhan, Sibel Oyucu; OYUCU ORHAN, SİBEL; Ocak, Birol; OCAK, BİROL; Evrensel, Turkkan; EVRENSEL, TÜRKKAN; Kahveci, Ramazan; KAHVECİ, RAMAZAN; Cubukcu, Erdem; ÇUBUKÇU, ERDEM; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Plastik Cerrahi ve Estetik Anabilim Dalı.; 0000-0001-6407-0962; 0000-0002-5771-7649; 0000-0002-7846-0870; 0000-0002-0598-7284; 0000-0001-7537-1699; AAJ-8314-2021; AEC-2238-2022; AAM-4927-2020; M-2172-2015
    Dermatofibrosarcoma protuberans (DFSP) is an uncommon soft tissue sarcoma that originates from the dermis or subcutaneous tissue in the skin. While its prognosis is generally favorable, disease recurrence is relatively frequent. Since morbidity after repeated surgery may be significant, an optimized prediction of recurrence-free survival (RFS) has the potential to improve current management strategies. The purpose of this study was to investigate the prognostic value of the Ki-67 proliferation index with respect to RFS in patients with DFSP We retrospectively analyzed data from 45 patients with DFSP. We calculated the Ki-67 proliferation index as the percentage of immunostained nuclei among the total number of tumor cell nuclei regardless of the intensity of immunostaining. We constructed univariate and multivariate Cox proportional hazards regression models to identify predictors of RFS. Among the 45 patients included in the study, 8 developed local recurrences and 2 had lung metastases (median follow-up: 95.o months; range: 5.2-412.4 months). The RFS rates at 60, 120, and 240 months of follow-up were 83.8%, 76.2%, and 65.3%, respectively. The median Ki-67 proliferation index was 14%. Notably, we identified the Ki-67 proliferation index as the only independent predictor for RFS in multivariate Cox proportional hazards regression analysis (hazard ratio = 1.106, 95% confidence interval = 1.019-1.200, p = 0.016). In summary, our results highlight the potential usefulness of the Ki-67 proliferation index for facilitating the identification of patients with DFSP at a higher risk of developing disease recurrences.
  • Publication
    Liver metastasis of breast carcinoma: An unusual presentation and growth pattern
    (Wolters Kluwer Medknow Publications, 2023-10-01) Özsen, Mine; ÖZŞEN, MİNE; Ugraş, Nesrin; UĞRAŞ, NESRİN; Deligönül, Adem; DELİGÖNÜL, ADEM; Yerci, Ömer; YERCİ, ÖMER; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı.
    Breast carcinoma is one of the tumors that frequently metastasize to the liver. Extramedullary hematopoiesis (EMH) usually occurs due to insufficient medullary hematopoiesis. In this case report, we present a female patient with sinusoidal breast carcinoma metastasis and extramedullary hematopoiesis in liver biopsy. A 63-year-old female patient with history of breast carcinoma was admitted to our center with respiratory distress. Pleural effusion was detected and thoracentesis was planned. Treatment was given after detection of non-mycobacterial tuberculosis bacillus in the thoracentesis fluid. Antibiotherapy was terminated due to elevation of liver enzymes and bilirubin. The patient's clinical status was evaluated and treatment was re-initiated. The patient did not have any mass lesion in the liver. Tru-cut biopsy was performed to evaluate a possible tuberculosis involvement in the liver. The diagnosis of metastatic breast carcinoma located in the sinusoidal area and cholestatic liver with extramedullary hematopoiesis foci was given using the histomorphological, immunohistochemical and histochemical findings. Radiological evaluation has an important role in staging of malignancies. However, it should be kept in mind that hepatic metastases may present without formation of a mass lesion, and unexpected laboratory results of cases without abnormal radiological features should raise the suspicion of a metastasis. Such materials should be evaluated in detail by making multiple serial sections in the pathology laboratory. Rare metastatic tumor growth patterns not causing a mass lesion such as sinusoidal or portal pattern, should also be kept in mind.
  • Publication
    Fibrous dysplasia: Clinicopathologic presentation of 36 cases
    (De Gruyter Poland Sp Zoo, 2018-09-01) Özsen, Mine; ÖZŞEN, MİNE; Yalçınkaya, Ulviye; YALÇINKAYA, ÜLVİYE; Bilgen, Muhammed Sadık; Yazıcı, Zeynep; YAZICI, ZEYNEP; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Radyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Ortopedi Anabilim Dalı.; 0000-0002-5771-7649; AAI-2303-2021; AAH-8924-2021; AAI-1609-2021
    Objective: Fibrous dysplasia is a slowly progressing bone lesion resulting from displacement of the normal medullary bone with abnormal fibroosseous tissue. The aim of this study was to assess the similarities and differences of our cases in relation to published reports.Material and Method: In this study, the archives of the Uludag University Medical Faculty Department of Pathology were screened for fibrous dysplasia cases between 2004 and 2016.Results: Within the mentioned period, there were 36 cases diagnosed as fibrous dysplasia. There were 21 male, and 15 female cases with an average age of 27.8 +/- 14.8 years (range 7-79 years). The most frequently affected sites were femur, costae, and craniofacial bones. There was one case localized to metacarpal bone, a very rare affection site. There were 4 polyostotic cases including 2 cases of McCune-Albright syndrome. Pelvic bone was affected in the polyostotic type, similar to published reports. Unlike former reports, however, long tubular bones were affected in male patients in our series. In our series, 32 cases had classical fibrous dysplasia, 3 cases had fibrocartilaginous, and one case had fibroosseous variants. Four cases localized to costae were accompanied by aneurysmal bone cyst. The presenting symptom was pathological fractures in a total of 4 cases, 3 localized to the femur, and 1 to the costa. Recurrence occurred in 5 cases treated with curettage. Two of the monostotic fibrous dysplasia cases developed malignant transformation into osteosarcoma.Conclusion: We conclude that our series of fibrous dysplasia cases have slight differences and mainly similar characteristics with the series reported earlier, when all features are taken into consideration.
  • Publication
    Peritumoral and intratumoral lymphocytic infiltration and stromal reaction in high-risk endometrioid carcinomas
    (Gazi Univ, Fac Med, 2023-01-01) Özsen, Mine; ÖZŞEN, MİNE; Atalay, Fatma Öz; ÖZ ATALAY, FATMA; OCAK, BİROL; Hasdemir, Seçil; HASDEMİR, SEÇİL; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji Anabilim Dalı.; 0000-0002-7188-6115; AEC-2238-2022
    Objective: This study aims to evaluate the relationship between the local immune response such as peritumoral and intratumoral lymphocytic infiltration and stromal reaction, with prognosis and other clinicopathological parameters in high-risk endometrioid carcinomas.Method: Totally 98 high-risk cases diagnosed as endometrioid carcinoma in our center between 2005 and 2017, were retrieved from the pathology archives and re-evaluated.Results: Totally 98 cases diagnosed as high-risk endometrial carcinoma were evaluated. Intratumoral and peritumoral lymphocytic infiltration was compared to overall survival period and overall survival was significantly higher in tumors showing peritumoral and intratumoral lymphocytic infiltration (p=0.000
  • Publication
    Lesions that mimic malignant tumors in nasopharyngeal biopsies: Case series of 10 years
    (Sage Publications Ltd, 2021-03-17) Özşen, Mine; Saraydaroğlu, Özlem; Yirmibeş, Selin; Coşkun, H. Hakan; ÖZŞEN, MİNE; SARAYDAROĞLU, ÖZLEM; Yirmibeş, Selin; COŞKUN, HAMDİ HAKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Kulak Burun Boğaz Anabilim Dalı; 0000-0002-5771-7649; 0000-0002-8211-6175; AAI-1609-2021; DPZ-1981-2022; EBH-3474-2022; EQK-3127-2022
    Introduction: Lesions mimicking malignancies in the nasopharynx are frequently seen in adult patients. These include inflammatory, metaplastic, and cystic lesions. We aimed to draw attention to rare tumor-like lesions that can be confused with malignancies and cause diagnostic difficulties clinically and radiologically. Methods: A total of 538 patients who underwent nasopharyngeal biopsy in our center between January 2010 and June 2020 were evaluated. Patient information was obtained from patient files and evaluated retrospectively. Results: A total of 19 of the 538 patients had tumor-like lesions that were included in the study. Granulomatous inflammation was present in seven cases, oncocytic metaplasia in four cases, benign cyst in five cases, fungal infection in two cases, and immunoglobulin G4-related disease in one case. Conclusions: The nasopharynx is a region where various lesions can be seen. Some lesions form tumor-mimicking mass effect, cause increased thickness, and lead to increased metabolic activity in positron emission tomography-computed tomography that create the illusion of a malignant tumor and histopathologic verification is crucial. We aimed to present these rare tumor-like lesions that should be kept in mind in the differential diagnosis.