Person: GÜLER, BERIL
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Publication Metadata only A rare entity: Bone marrow metastasis in a patient with Wilms tumor(2016-10-01T00:00:00Z) Kaygusuz, Sare Betül; Çakır, Fatma Betül; Göç, Rümeysa; Güler, Beril; Gücin, Zühal; ÇAKIR, FATMA BETÜL; GÜLER, BERIL; GÜCİN, ZÜHALPublication Open Access Vulvar granular cell tumor(2016-07-01) Sonmez, FATMA CAVİDE; KOROGLU, Nadiye; Guler, BERİL; Arici, DİLEK SEMA; SÖNMEZ, FATMA CAVİDE; GÜLER, BERIL; ARICI, DILEK SEMAGranular cell tumors (GCTs) are rare and approximately half of the all lesions arise from head and neck, especially from the tongue. However, they are rarely seen in the vulva. They can occur in patients of any age, but peak age incidence is in the fourth to sixth decades. They generally occur as small, slow growing, and skin-colored nodule. GCTs are usually benign, but malignant cases were reported. Recurrence can be seen in benign tumors with clear margins, but rates increase with positive margins. The treatment is complete surgical excision. We report a case of benign GCT of the vulva. A 41-year-old patient presented with vulvar mass, and biopsy was consisted with GCT.Publication Open Access The diagnostic ability of core needle biopsy in nodular thyroid disease.(2017-03-01) Aysan, E; KIRAN, TUĞÇE; IDIZ, UO; AKBULUT, H; GULER, B; KUNDUZ, ENVER; ARICI, S; KADAKAL, G; Ozgor, M; Coci, K; AYŞAN, MUSTAFA ERHAN; KIRAN, TUĞÇE; GÜLER, BERIL; KUNDUZ, ENVERINTRODUCTION Non-diagnostic results of fine needle aspiration biopsy (FNAB) remain an important limitation of this technqiue. The aim of our study was to evaluate the results of core needle biopsy (CNB) of thyroid nodules and its effectiveness in non-diagnostic FNAB cases. METHODS CNBs were performed in 1,000 patients (154 male, 846 female; mean age: 50.2 years, range: 18–86 years) with a spring loaded 20G needle. Of these, 143 had initially had FNABs that were insufficient for evaluation. The CNB reports were reviewed. Patients with suspicious or malignant CNB results underwent total thyroidectomy. RESULTS When considering all 1,000 CNBs, the non-diagnostic rate was 1.5% (15/1,000). However, when the first 100 cases were eliminated as a learning curve, this reduced to 0.9% (8/900). Of the 143 cases with initial FNABs that were non-diagnostic, 0.7% (1/143) were also non-diagnostic on CNB. Twelve patients underwent surgery because of malignant CNB reports and all of these cases were confirmed as malignant by the postoperative pathology specimen results (100% accuracy). There were no major complications although three self-limiting minor complications were observed. CONCLUSIONS CNB is a safe and accurate method. It is more diagnostic than FNAB for nodular thyroid disease.Publication Metadata only Effect of a combination of mometasone furoate, levofloxacin, and retinyl palmitate with an in situ gel-forming nasal delivery system on nasal mucosa damage repair in an experimental rabbit model(2017-12-01) AKSOY, Fadlullah; DOĞAN, REMZİ; ÖZTURAN, ORHAN; ALTUNTAŞ, Ebru; YENER, FATMA GÜLGÜN; TOPÇU, GÜLAÇTI; GÜLER, BERİL; AKSOY, FADLULLAH; DOĞAN, REMZI; ÖZTURAN, ORHAN; TOPÇU, GÜLAÇTI; GÜLER, BERILPublication Metadata only Can PET-CT replace bone marrow biopsy for lymphoma staging? Retrospective analysis of 198 Hodgkin and non-Hodgkin lymphoma cases(2021-06-01T00:00:00Z) Güler, Beril; Adilli, Adila; Uysal, Ömer; GÜLER, BERIL; ERDOĞAN, EZGİ BAŞAK; UYSAL, ÖMERAim: Lymphoma staging is important from the prognostic and therapeutic point of view and bone marrow biopsy performed for this purpose makes up a large part of current hematopathology practice. PET-CT is the currently preferred method to evaluate bone marrow involvement by lymphoproliferative disorders as it is non-invasive and practical. The aim of this study was to compare trephine biopsy and PET-CT results as regards determining bone marrow involvement in various lymphoma subtypes. Materials and Methods: A total number of 198 bone marrow biopsies and 185 PET-CT images of cases consisting of various lymphoma subtypes were included in the study. The results of both methods evaluated for bone marrow infiltration were grouped as positive, negative, and suspicious to compare consistency. Statistical agreement was calculated with the kappa coefficient. The sensitivity, specificity, and the positive and negative predictive values were calculated as the diagnostic test measures. Results: Twenty-six cases (15.8%) had lymphoma involvement in trephine biopsies and 36 cases (21.2%) had positive findings for lymphoma involvement of the bone marrow on PET-CT. The two methods had weak statistical agreement (κ= 0.21). Biopsy and PETCT results were similar in 132 cases (71.20%). PET-CT showed false negative results in 11 cases in which infiltration was observed with biopsy. Twenty-six cases that were negative for lymphoma involvement on biopsy were accepted as positive on PET-CT and 16 of these cases were classical Hodgkin-s lymphoma. One case with suspicious bone marrow biopsy was positive on PET-CT, while four cases with suspicious PET-CT results were positive on biopsy. Conclusion: The results showed that both of the methods have advantages and disadvantages as regards lymphoma staging. However, histopathology is globally accepted as the gold standard for a definite diagnosis. We believe that the complementary use of the two methods is more beneficial for correct guidance during clinical practice.Publication Metadata only Correlation Between Simultaneous Ultrasound-Guided Fine Needle Aspiration and Core Needle Biopsy Results in Thyroid Nodules of 44 Cases(2017-01-01T00:00:00Z) KIRAN, TUĞÇE; GÜLER, BERİL; AYŞAN, MUSTAFA ERHAN; ARICI, DİLEK SEMA; KIRAN, TUĞÇE; GÜLER, BERILPublication Metadata only Using a corkscrew-tipped telescopic nail in the treatment of osteogenesis imperfecta: a biomechanical study and preliminary results of 17 consecutive cases(2019-03-01T00:00:00Z) Sarikaya, Ilker; Seker, Ali; Erdal, Ozan Ali; GÜNAY, HÜSEYİN; Inan, Muharrem; GÜLER, BERİL; GÜLER, BERILHigh complication rates were reported with the telescopic nail technique systems. To overcome such technical difficulties, we designed a corkscrew-tipped telescopic nail (CTTN). We biomechanically compared its pullout strength with that of two other tip designs. We used CTTN in 17 patients with osteogenesis imperfecta and reported their preliminary results. Average patient age was 82.6 months, and mean follow-up was 32.0 +/- 6 months. Telescoping and osteotomy site healing were assessed using radiological studies. Successful telescoping with event-free osteotomy site healing was achieved in 94.1% of patients; limited telescoping and delayed union were detected in one case each. Our results show that CTTN provides sufficient pullout strength and reduced complication rates compared with other designs. Copyright (C) 2018 Wolters Kluwer Health, Inc. All rights reserved.Publication Metadata only Should Core Needle Biopsy be Used in the Evaluation of Thyroid Nodules?(2016-12-01) Guler, BERİL; Kiran, TUĞÇE; Arici, DİLEK SEMA; Aysan, Erhan; Sonmez, FATMA CAVİDE; GÜLER, BERIL; KIRAN, TUĞÇE; ARICI, DILEK SEMA; AYŞAN, MUSTAFA ERHAN; SÖNMEZ, FATMA CAVİDEFine needle aspiration (FNA) is the first choice in thyroid nodules suspected of harboring malignancy on sonography in routine practice. However, sampling with core needle biopsy (CNB) is also being used, especially in cases with repeated nondiagnostic/indeterminate diagnoses. The aim of this study was the retrospective evaluation of CNB samples. A total of 604 thyroid CNB samples registered in the Department of Pathology at Bezmialem Foundation University Medical Faculty within the 1-year period between June 2014 and June 2015 were re-evaluated by correlation with previous FNA and later resection results. CNB was divided into diagnostic groups of insufficient, malignant, suspicious for malignancy, no evidence of malignancy/benign, atypia of uncertain significance (AUS)/follicular lesions of uncertain significance (FLUS), and follicular neoplasm (FN)/suspicious for follicular neoplasm (SFN). Among the 604 cases, 15 cases (2.48 %) were classified as malignant and 9 cases (1.49 %) as suspicious for malignancy. No evidence of malignancy was seen in 512 cases (84.76 %). There were 26 (4.3 %) cases in the AUS/FLUS-FN/SFN group, and the sample was inadequate in 42 cases (6.95 %). Resection was performed for 17 of the cases classified as malignant or suspicious for malignancy, and all were found to be malignant. There were also 10 resected cases with a diagnosis of no evidence of malignancy, and all were found to be benign. We think that sampling with CNB may be useful especially in repeating inadequate biopsies or cases diagnosed with AUS/FLUS that have hesitations regarding clinical management. Larger series including comparisons with FNA and resection results are required.Publication Metadata only Histopathological Features of Gastrointestinal Stromal Tumors and the Contribution of DOG1 Expression to the Diagnosis(2015-10-01T00:00:00Z) GÜLER, BERİL; Ozyilmaz, Filiz; Tokuc, Burcu; Can, Nuray; Tastekin, Ebru; GÜLER, BERILBackground: Gastrointestinal stromal tumors (GIST) have KIT or platelet-derived growth factor receptor a (PDGFR alpha) mutations affecting receptor tyrosine kinase activity and do not benefit from classic treatment regimens.Publication Open Access Use of peritoneal washing cytology for the detection of free peritoneal cancer cells before and after surgical treatment of gastric adenocarcinoma(2018-10-01) HASBAHCECI, Mustafa; Akcakaya, ADEM; Guler, BERİL; Kunduz, ENVER; Malya, FATMA ÜMİT; Muslumanoglu, Mahmut; AKÇAKAYA, ADEM; GÜLER, BERIL; KUNDUZ, ENVER; MALYA, FATMA ÜMİTAim: Cytological detection of peritoneal-free gastric cancer cells is considered as the gold standard with variable sensitivity. Seeding of cancer cells after radical surgery for gastric cancer is a controversial issue. In this study, it was aimed to detect the rate of positive peritoneal washing cytology and the incidence of spreading of tumor cells after radical surgery. Materials and methods: Patients with pathologically proven and surgically treated gastric adenocarcinoma were enrolled. Three peritoneal washing samples were examined cytologically: at the beginning, after completion of resection, and before closure of the abdomen. Identification of peritoneal-free gastric cancer cells was regarded as the main outcome. Results: Thirty-four patients with a mean age of 60.7 ± 12 years were enrolled. T3 and N0 were the most common stages seen in 16 (47%) and 12 patients (35.3%), respectively. There were two positive results (5.9%) as the first peritoneal sample. Considering T3- or N-positive patients, the incidence increased to 9.1%. There was no conversion of negative to positive cytology. Cytological positivity remained only in one case (2.9%) after the second and the third peritoneal samples. Conclusion: Rate of positive peritoneal washing cytology in patients with gastric cancer is influenced by clinicopathological findings and the technique used. Use of cytology alone is thought to be failed to detect free cancers cells within the peritoneal cavity.