Person: YILDIZ, PELİN
10 results
Search Results
Now showing 1 - 10 of 10
Publication Metadata only Correlation of clinical, dermoscopical and histopathological features of all subtypes of basal cell carcinoma(2017-06-01) DIZMAN, DİDEM; OZKAYA, D. B.; BAHALI, A. G.; DIZMAN, B. T.; YILDIZ, PELİN; TOSUNER, ZEYNEP; Demirkesen, C.; ONSUN, NAHİDE; SU, O.; DİZMAN, DİDEM; YILDIZ, PELİN; TOSUNER, ZEYNEP; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEPublication Metadata only Oral liken planus ve skuamöz hücreli karsinom olgularında Langerhans hücre yoğunluğunun değerlendirilmesi(2020-10-01T00:00:00Z) YILDIZ, PELİN; SÖNMEZ, FATMA CAVİDE; TOSUNER, ZEYNEP; AYTUĞAR, EMRE; YILDIZ, PELİNPublication Open Access Primary cutaneous carcinosarcoma: The first reported case with peripheral nerve sheath differentiation(2014-06-01T00:00:00Z) Yildiz, PELİN; Tosuner, ZEYNEP; Guneren, ETHEM; Demirkesen, Cuyan; YILDIZ, PELİN; TOSUNER, ZEYNEP; GÜNEREN, ETHEMPrimary cutaneous carcinosarcomas (CS) are extremely rare biphasic tumors mainly located on sun-exposed areas of the body. Two hypotheses-multiclonal (convergence) and monoclonal (divergence)-have been suggested for the evolution of these tumors. According to multiclonal hypothesis two or more stem cells of epithelial and mesenchymal origin give rise to these tumors, while a single totipotential cell differentiate into epithelial and mesenchymal components, either synchronously or metachronously according to monoclonal hypothesis. Cutaneous CSs are subdivided into two distinct groups as epidermal and adnexal CSs, due to their epithelial content. We present an interesting case of cutaneous adnexal CS, showing peripheral nerve sheath differentiation and having the spiradenocarcinoma component derived from spiradenoma. To the best of our knowledge, it is the first reported case of CS with these features in the literature.Publication Metadata only Oral liken planus ve skuamöz hücreli karsinom olgularında Langerhans hücre yoğunluğunun değerlendirilmesi(2016-11-06T00:00:00Z) YILDIZ, PELİN; SÖNMEZ, FATMA CAVİDE; TOSUNER, ZEYNEP; AYTUĞAR, EMRE; YILDIZ, PELİNPublication Metadata only Extramammary paget disease: Case report Ekstramammaryan Paget Hastaliǧi(2016-12-30) CENGİZ, FATMA PELİN; EMİROĞLU, NAZAN; SU, Özlem; Tosuner, ZEYNEP; BAHALI, ANIL GÜLSEL; YILDIZ, PELİN; ONSUN, NAHİDE; CENGİZ, FATMA PELIN; EMİROĞLU, NAZAN; BIYIK ÖZKAYA, DİLEK; TOSUNER, ZEYNEP; SU KÜÇÜK, ÖZLEM; BAHALI, ANIL GÜLSEL; YILDIZ, PELİN; ONSUN, NAHIDEPublication Metadata only Correlation of Clinical, Dermoscopical and histopathological features of all subtypes of basal cell carcinoma(2017-05-06T00:00:00Z) DİZMAN, DİDEM; BIYIK ÖZKAYA, DİLEK; BAHALI, ANIL GÜLSEL; TOPUKÇU, BUĞÇE; YILDIZ, PELİN; TOSUNER, ZEYNEP; DEMİRKESEN, CÜYAN; ONSUN, NAHİDE; SU KÜÇÜK, ÖZLEM SU; BAHALI, ANIL GÜLSEL; YILDIZ, PELİN; ONSUN, NAHIDE; SU KÜÇÜK, ÖZLEMPublication Metadata only Ekstramammaryan Paget Hastalığı(2016-12-01T00:00:00Z) CENGİZ, FATMA PELİN; EMİROĞLU, NAZAN; BIYIK ÖZKAYA, DİLEK; TOSUNER, ZEYNEP; BAHALI, ANIL GÜLSEL; SU KÜÇÜK, ÖZLEM; YILDIZ, PELİN; ONSUN, NAHİDE; CENGİZ, FATMA PELIN; EMİROĞLU, NAZAN; TOSUNER, ZEYNEP; BAHALI, ANIL GÜLSEL; SU KÜÇÜK, ÖZLEM; YILDIZ, PELİN; ONSUN, NAHIDEPublication Open Access Immunoexpression of TTF-1 in Non-Lung Tumors(2014-12-01T00:00:00Z) TOSUNER, ZEYNEP; ARICI, Dilek Sema; GÜCİN, ZÜHAL; BÜYÜKPINARBAŞILI, NUR; SÖNMEZ, FATMA CAVİDE; YILDIZ, PELİN; TOSUNER, ZEYNEP; ARICI, DILEK SEMA; GÜCİN, ZÜHAL; BÜYÜKPINARBAŞILI, NUR; SÖNMEZ, FATMA CAVİDE; YILDIZ, PELİNObjective: Thyroid transcription factor-1 (TTF-1) immunoexpression is frequently determined in small-cell lung carcinomas, as well as primary lung adenocarcinomas. While dealing with metastatic carcinomas, TTF-1 immunoexpression is a significant indicator of primary lung carcinomas. Recent studies have revealed that TTF-1 immunoexpression is also defined in non-lung cancers, such as squamous cell carcinomas of different sites and certain neuroendocrine tumors. The verified data obtained from these studies indicate that a straightforward diagnosis of primary lung carcinoma in cases with positive TTF-1 immunoexpression can cause diagnostic contradictions. The aim of our study is to investigate the immunoexpression status of TTF-1 in common non-lung tumors. Methods: A total of 85 cases that were diagnosed in our institute between the years 2011-2012 were included in our study. After a review of the pathological slides prepared from these tumors [colon adenocarcinoma (n: 15), renal cell carcinoma (n: 15), prostate adenocarcinoma (n: 15), invasive papillary urothelial carcinoma (n: 15), invasive ductal carcinoma of breast (n: 15), and neuroendocrine tumors (n: 10)] TTF-1 immunohistochemistry was applied. Semiquantative evaluation based on the distribution and intensity of the staining was performed by two pathologists, respectively. Results: Positive immunostaining was evident in only 1 case of colon adenocarcinoma out of 85 cases. Conclusion: Our study demonstrated that TTF-1 immunoexpression is a very rare finding (1%) in non-lung tumors. This result provides that anti-TTF-1 is a reliable antibody in the interpretation of primary lung carcinomas. In fact, further studies with a large number of cases are needed to confirm the sensitivity and specificity of TTF-1.Publication Metadata only Extramammary paget disease: Case report(2016-12-01) CENGİZ, FATMA PELİN; EMİROĞLU, NAZAN; BIYIK ÖZKAYA, DİLEK; TOSUNER, ZEYNEP; BAHALI, ANIL GÜLSEL; YILDIZ, PELİN; ONSUN, NAHİDE; CENGİZ, FATMA PELIN; EMİROĞLU, NAZAN; BIYIK ÖZKAYA, DİLEK; TOSUNER, ZEYNEP; SU KÜÇÜK, ÖZLEM; BAHALI, ANIL GÜLSEL; YILDIZ, PELİN; ONSUN, NAHIDEPublication Open Access A Rare Confusing Nevus Variant: Meyerson Nevus(2018-01-01T00:00:00Z) YILDIZ, PELİN; KÜÇÜK, ÖZLEM SU; DİZMAN, DİDEM; Tosuner, Zeynep; ARICI, Belfin Nur; DEVECİ, Uğur; DEMİRKESEN, Cüyan; YILDIZ, PELİN; SU KÜÇÜK, ÖZLEM; TOSUNER, ZEYNEP; DİZMAN, DİDEMMeyerson nevus is a rare benign entity described by Meyerson et al in 1971 as a melanocytic nevus surrounded by inflammatory, eczematous eruption that resolves spontaneously or by topical steriod therapy (fluticasone propionate, Abdi Ibrahim Ilac San. ve Tic. A.S., Istanbul), but the nevus persists. This entity is not well known and there is limited information in the literature. Since the lesion may develop suspicion for malignancy, it is important to keep this entity in mind. In this article we present three Meyerson nevi, two of which belong to one patient.