Person: GÖKGÖZ, MUSTAFA ŞEHSUVAR
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GÖKGÖZ
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MUSTAFA ŞEHSUVAR
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Publication Phyllodes tumor of the breast: A clinicopathological evaluation of 55 cases(Aves, 2020-01-01) Hasdemir, Seçil; Tolunay, Şahsine; Özşen, Mine; Gökgöz, Mustafa Şehsuvar; HASDEMİR, SEÇİL; TOLUNAY, ŞAHSİNE; ÖZŞEN, MİNE; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Meme Cerrahisi Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı; 0000-0003-1769-7484; 0000-0002-9038-0515; 0000-0002-5771-7649; 0000-0003-1394-2630; GBY-7549-2022; AAI-1612-2021; AAI-1609-2021; JKX-1058-2023Objective: Phyllodes tumors are biphasic tumors consisting of epithelial and stromal components that account for less than 1% of all breast tumors. According to the World Health Organization (WHO) phyllodes tumors are classified into three categories as benign, borderline and malignant. It has been reported that these tumors are usually benign and both the stromal component and the epithelial component may progress to malignancy. In this descriptive study, it was aimed to present the cases of phyllodes tumor and to evaluate the clinicopathological features of these tumors in the light of the literature.Materials and Methods: In our study, 55 cases of phyllodes tumor diagnosed between 2005-2018 in the Department of Medical Pathology were retrospectively studied. A total of 55 cases were included in the study.Results: All cases were female with a mean age of 39.7+15.2 years. Fifty-seven tumors diagnosed in 55 cases were classed as benign in 20 cases (35.1%), borderline in 14 cases (24.6%) and malignant phyllodes tumors in 23 cases (40.3%). Ductal carcinoma in situ (solid and cribriform type) were detected in one case with malignant phyllodes tumor, whereas invasive ductal carcinoma was detected in one case. Bilateral ductal carcinoma in situ was present in the patient with invasive ductal carcinoma.Conclusion: These tumors which rapidly grow into large masses can be clinically and pathologically confused with benign lesions, macroscopic and microscopic evaluation of concomitant in situ-invasive carcinomas should be considered. Phyllodes tumors have an important role in breast surgery and pathology.Publication A case report of primary breast angiosarcoma: Clinical presentation and outcome after adjuvant radiotherapy(Aves, 2020-10-01) Altmisdörtoğlu, Özgür; Andrieu, Meltem Nalca; Gökgöz, Mustafa Şehsuvar; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Yalçınkaya, Ulviye; YALÇINKAYA, ÜLVİYE; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Genel Cerrahi Anabilim Dalı.; AAH-8924-2021Angiosarcomas of the breast are infrequent subtypes of sarcoma that are often diagnosed after radiation therapy for primary breast cancer. Primary angiosarcomas (PAS) are rare tumors that constitute 0.04% of all malignant breast tumors. We report a case of a 40-year-old woman with a lump in the right breast and diagnosed as angiosarcoma by pathological evaluation. She underwent simple mastectomy followed by adjuvant radiation. She is alive and disease-free for 66 months although tumor size was large and one surgical margin was tumor positive. Breast angiosarcoma is often in advanced stage at diagnosis and tends to recur locally. Although surgical methods constitute the primary treatment, we believe that a multidisciplinary treatment strategy should be used in high-risk patients with large primary tumors and tumor positive margins.Publication Prognostic significance of estrogen receptor, progesterone receptor, her2/neu, ki-67, and nm23 expression in patients with invasive breast cancer(Imprimatur Publications, 2013-04-01) Ölmez, F.; Çubukçu, E.; ÇUBUKÇU, ERDEM; DELİGÖNÜL, ADEM; Kanat, O.; Ölmez, O. Fatih; Kabul, S.; KABUL, SELVA; Canhoroz, M.; Avcı, N.; Deligönül, A.; Hartavi, M.; Çubukçu, S.; ÇUBUKÇU, SİNEM; Kurt, E.; Evrensel, T.; EVRENSEL, TÜRKKAN; Gökgöz, S.; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Manavoğlu, O.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Genel Cerrahi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; AAJ-1027-2021Purpose: To determine the prognostic significance of estrogen receptor (ER), progesterone receptor (PR), HER2/neu, Ki-67, and nm23 immunohistochemical expression with respect to progression free survival (PFS) and overall survival (OS) in Turkish patients with invasive breast cancer (IBC).Methods: Patients with IBC (n = 81; mean age = 51.9 +/- 11.1 years) were prospectively enrolled at the Department of Oncology, Uludag University Medical Center, Bursa, Turkey. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded tissue sections.Results: We did not find any significant association between immunohistochemical expression of ER, PR, HER2/neu, Ki-67, and nm23 and the baseline characteristics of IBC patients. The median patient PFS was 30 months (range 22-45), and the median OS was 32 months (range 23-46). Stratification of the patient population according to nm23 immunohistochemical expression revealed a statistically significant difference in terms of both OS (p < 0.05) and DFS (p < 0.05). Multivariate Cox regression analysis indicated that tumor grade, axillary lymph node status, and nm23 immunohistochemical expression were the 3 main independent prognostic factors for PFS and OS in IBC patients.Conclusion: Reduced nm23 immunohistochemical expression is an independent negative prognostic factor for OS and PFS. Patients with negative nm23 expression may require a more intensive follow-up.Publication Granulomatous lobular mastitis: Clinicopathologic presentation of 90 cases(Türk Patoloji Derneği, 2018-09-01) Özşen, Mine; Tolunay, Şahsine; Gökgöz, Mustafa Şehsuvar; ÖZŞEN, MİNE; TOLUNAY, ŞAHSİNE; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı; Uludağ Üniversitesi/Tıp Fakültesi/Meme Cerrahisi Anabilim Dalı; 0000-0002-5771-7649; AAI-1612-2021; AAI-1609-2021; JKX-1058-2023Objective: Granulomatous lobular mastitis is a rare benign chronic breast disease first described by Milward in 1970, and then by Kessler and Wolloch in 1972. In this study, we aimed to present clinicopathologic features of granulomatous lobular mastitis with literature data.Material and Method: In this study, the archives of Uludag University Medical Faculty Department of Pathology were screened for granulomatous lobular mastitis cases between 2005 and 2017.Results: A total of 90 patients with granulomatous lobular mastitis diagnosed between 2005 and 2017 were identified. All of the cases were female. The mean age was 34 t8.3 (range 21-60 years). There was sarcoidosis in one case and tuberculosis in another case, but no systemic disease was found in the charts of the other cases. Histopathological evaluation of 90 cases revealed non-necrotizing granulomas involving lobule-restricted, epithelioid histiocytes and Langhans-type multinuclear giant cells. There was no case of necrosis, including our only case with a history of tuberculosis.Conclusion: We conclude that our granulomatous lobular mastitis cases have similar characteristics with the series reported earlier, when all features are taken into consideration.