Person: GÜCİN, ZÜHAL
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Publication Metadata only Assessment of multifocality and axillary nodal involvement in early-stage breast cancer patients using 18F-FDG PET/CT compared to contrast-enhanced and diffusion-weighted magnetic resonance imaging and sentinel node biopsy(2015-08-01) ERGÜL, Nurhan; Kadioglu, HÜSEYİN; Yildiz, Seyma; YUCEL, Serap Baskaya; Gucin, ZÜHAL; Erdogan, EZGİ BAŞAK; Aydin, MEHMET; MUSLUMANOGLU, Mahmut; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETBackground: Non-invasive evaluation of the extent of axillary nodal involvement in early-stage breast cancer (ESBC) patients and accurate assessment of multifocality are both challenging. Few reports have explored whether 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) might be more useful than other diagnostic methods in these contexts.Publication Open Access Comparison of MRI Features of Invasive Pleomorphic and Classical Lobular Carcinoma: Differentiation Is Possible?(2022-01-01T00:00:00Z) YILMAZ, TEMEL FATİH; OTÇU TEMUR, HAFİZE; SARI, LÜTFULLAH; GÜCİN, ZÜHAL; GÜLTEKİN, MEHMET ALİ; ÇELİK YABUL, FATMA; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMA; YILMAZ, TEMEL FATİH; OTÇU TEMUR, HAFİZE; SARI, LÜTFULLAH; GÜCİN, ZÜHAL; GÜLTEKİN, MEHMET ALİ; ÇELİK YABUL, FATMA; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMATo evaluate breast MRI and DWI and demographic features of pleomorphic invasive lobular carcinoma (pILC) and classic invasive lobular carcinoma (cILC). Invasive lobular (ILC) is the second most common breast malignancy after invasive ductal carcinoma (IDC) and constitutes the 8-14% of all invasive breast cancers. ILC morphologically can be classified into the classic, alveolar, solid, tubulolobular, and pleomorphic subtypes according to WHO. This study was performed retrospectively. The MRI and demographic features of 18 patients with 23 pILC were compared with those 22 consecutive patients with 27 cILC. There was no significant difference in demographic features of patients, MR appearance, kinetics, and ADC values between two groups. pILC, an aggressive subtype of ILC, cannot be differentiated from cILC with breast MRI.Publication Metadata only Skin Recurrence of a Phylloides Tumor and Impacy of Radiotherapy A Case Report and Review of The Literature(2013-01-01) YÜCEL, SERAP; KADIOĞLU, HÜSEYİN; GÜRAL, ZEYNEP; YILDIZ, ŞEYMA; YILDIZ, ŞEYMA; GÜCİN, ZÜHALPublication Metadata only Primer Meme Lenfoması; Yineleyen Hastalık,(2012-05-01) KADIOGLU, HÜSEYİN; YUCEL, SERAP BASKAYA; GÜRAL, ZEYNEP; GÖZÜBÜYÜKOGLU, NURHAN; AKGÜN, ZÜLEYHA; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; BOZKURT, SÜLEYMAN; ERSOY, YELİZ EMİNE; SAGLAM, ESRA KAYTAN; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; BOZKURT, SÜLEYMANPublication Metadata only İNFLAMATUAR MEME KANSERİ ŞEKLİNDE PREZENTE OLAN MÜSİNÖZ MEME KANSERİ OLGUSU(2015-08-01) YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAK; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAK; KADIOĞLU, HÜSEYİNPublication Metadata only Primary breast lymphoma; disease recurrence(2012-09-01) KADIOĞLU, HÜSEYİN; YUCEL, SERAP; GÜRAL, ZEYNEP; GÖZÜBÜYÜKOGLU, NURHAN; AKGÜN, ZÜLEYHA; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; BOZKURT, SÜLEYMAN; ERSOY, YELİZ EMİNE; MUSLUMANOGLU, MAHMUT; SAGLAM, ESRA KAYTAN; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; BOZKURT, SÜLEYMANPublication Metadata only The role of miRNAs as a predictor of multicentricity in breast cancer.(2019-02-01) AKBULUT, H; ERSOY, YELİZ EMİNE; COŞKUNPINAR, E; GÜCİN, ZÜHAL; YILDIZ, S; MALYA, FATMA ÜMİT; HASTÜRK, B; MUSLUMANOGLU, MAHMUT; ERSOY, YELIZ EMINE; GÜCİN, ZÜHAL; YILDIZ, ŞEYMA; MALYA, FATMA ÜMİTExpression profiles of miRNAs are shown to be different in various cancers to regulate expression of mRNA or to have a role in inhibition of translation, thus it shows the possible effect in progression, invasion and metastasis of breast cancer cells. The effect of breast conserving treatment in local recurrence and survival rates for the patients who have multicentric breast cancer is still controversial. In our study, we intended to evaluate the foresight of 84 miRNAs which are identified in breast cancer for having differentiated expressions. Thirty-one patients with unifocal and 26 patients with multicentric breast cancer were included in this study. These tissue samples of both malignant and normal breast tissues were kept in RNA later solution at -80 degrees C. Eighty-four miRNAs were studied with miScript miRNA PCR Array Human Breast Cancer kit. Fold change, cut off value was accepted as four. In unifocal group, there were 13 upregulated and five downregulated miRNAs and in multicentric group, there were three upregulated and seven downregulated miRNAs. To reach better results for breast cancer diagnosis and treatment, it is important to enlighten tumor biology, and pay attention to target and individual therapy. Thus, miRNAs have potential role in identifying tumor characteristics in supporting diagnosis and resulting with better evaluated disease for better treatment results with individual strategies.Publication Open Access The role of PET and MRI in evaluating the feasibility of skin-sparing mastectomy following neoadjuvant therapy.(2018-02-01) MALYA, FATMA ÜMİT; KADIOGLU, HÜSEYİN; BEKTASOGLU, HÜSEYİN KAZIM; Gucin, ZÜHAL; YILDIZ, S; GUZEL, MEHMET; ERDOGAN, EZGİ BAŞAK; YUCEL, S; ERSOY, YELİZ EMİNE; MALYA, FATMA ÜMİT; KADIOĞLU, HÜSEYİN; BEKTAŞOĞLU, HÜSEYİN KAZIM; GÜCİN, ZÜHAL; YILDIZ, ŞEYMA; GÜZEL, MEHMET; ERDOĞAN, EZGİ BAŞAK; ERSOY, YELIZ EMINEAbstract Objective: To investigate the role of positron emission tomography (PET) and magnetic resonance imaging (MRI) in evaluating the feasibility of skin-sparing mastectomy in patients with locally-advanced breast cancer (LABC) who will undergo neoadjuvant chemotherapy (NAC) by evaluating the sensitivity and specificity of PET and MRI compared with skin biopsy results before and after NAC treatment. Methods: Patients with LABC who were treated with NAC between November 2013 and November 2015 were included in this study. Demographic, clinical, radiological and histopathological features of the patients were recorded. Results: A total of 30 patients were included in the study with a mean age of 52.6 years (range, 35– 70 years). Sensitivity and specificity for detecting skin involvement in LABC was 100%/10% (62%/ 85%) with MRI and 60%/80% (12%/92%) with PET before (after) NAC, respectively. When radiological skin involvement was assessed in relation to the final histopathological results, the preNAC PET results and histopathological skin involvement were not significantly different; and there was no difference between postNAC MRI and histopathological skin involvement. Conclusions: As preNAC PET and postNAC MRI more accurately determined skin involvement, it might be possible to use these two radiological evaluation methods together to assess patient suitability for skin-sparing mastectomy in selected patients.Publication Metadata only Primary breast lymphoma; disease recurrence Primer meme lenfomasi{dotless}; yineleyen hastali{dotless}k(2012-09-18) Kadioǧlu, HÜSEYİN; YUCEL, Serap; GÜRAL, Zeynep; GÖZÜBÜYÜKOGLU, Nurhan; AKGÜN, Züleyha; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; Bozkurt, SÜLEYMAN; ERSOY, YELİZ EMİNE; MUSLUMANOGLU, Mahmut; SAGLAM, Esra Kaytan; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; BOZKURT, SÜLEYMAN; ERSOY, YELIZ EMINEPublication Metadata only Stem cell markers: A guide to neoadjuvant therapy in breast carcinomas(2022-06-01T00:00:00Z) Gücin, Zühal; Büyükpınarbaşılı, Nur; Geçer, Melin; Ersoy, Yeliz Emine; Türk, Hacı Mehmet; Yıldız, Şeyma; Aksoy, Direnç Özlem; GÜCİN, ZÜHAL; GEÇER, MELİN; ERSOY, YELIZ EMINE; TÜRK, HACI MEHMET; YILDIZ, ŞEYMABACKGROUND: In recent years, stem cells have been defined as the main cell population responsible for resistance to anticancer therapies. AIM: This study aims to investigate potential associations between the stem cell population and the degree of tumor regression in breast carcinomas treated with neoadjuvant therapy. SETTINGS AND DESIGN: The study included 92 patients with breast carcinoma who received neoadjuvant therapy. Tumor regression was defined based on Miller and Payne grading system. Patients with grade 1 or 2 regression on a 5‑point scale were included in group 1 (n = 37), grade 3 regression in group 2 (n = 32), and grade 4 or 5 regression in group 3 (n = 23). MATERIALS AND METHODS: Immunohistochemical staining was performed on paraffin block sections of every case using CD44, CD24, CD29, CD133, ID4, and ALDH1 antibodies to detect stem cells. STATISTICAL ANALYSIS USED: IBM Statistical Package for the Social Sciences (SPSS), version 23.0 (IBM Corp., Armonk, NY, USA) software was used for statistical analyses, and a P value less than 0.05 was considered statistically significant. RESULTS: Histologically high‑grade tumors are more common in the near‑complete/complete response group (P = 0.004). HER2‑positive tumors were more common in the complete/ near‑complete response group (P = 0.054). Tumor cells positive for stem cell markers CD44 and CD24 were more common in the poor response group (P = 0.027 and P = 0.001, respectively). CD29 expression was reduced in the posttreatment residual tumor tissue in the near‑complete/complete response group. CONCLUSION: High CD44 and CD24 expression may be a predictor of poor response/nonresponse to neoadjuvant therapy in breast carcinomas. KEY WORDS: Breast Cancers, neoadjuvant treatment, stem cell markers, stem cells, tumor regression grade