Person: YUMUŞAKHUYLU, ALİ CEMAL
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YUMUŞAKHUYLU
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ALİ CEMAL
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Publication Open Access Effect of the pandemic on surgical procedures in a tertiary care hospital: A retrospective review(2022-09-01) SAÇAK, BÜLENT; KESİMER, MEHMET DENİZ; ŞAHİN, BAHADIR; UĞURLU, MUSTAFA ÜMİT; SAKAR, MUSTAFA; YUMUŞAKHUYLU, ALİ CEMAL; Ozkan M. C. , SAÇAK B., KESİMER M. D. , ŞAHİN B., UĞURLU M. Ü. , Sirzai E. Y. , SAKAR M., Aykut A., Cicek I., YUMUŞAKHUYLU A. C.Objective: The aim of this study was to examine the impact of performing surgeries with necessary precautions and to evaluate demographic characteristics of operated patients during novel coronavirus-2019 (COVID-19) pandemic and the infection rates during hospitalization and within 14 days after surgery.Publication Open Access Relationship of PPARG overexpression with prognostic parameters in papillary thyroid carcinoma(2022-02-01) ASYA, ORHAN; YUMUŞAKHUYLU, ALİ CEMAL; BAĞCI ÇULÇİ, PELİN; ŞAHİN, AKIN; OYSU, ÇAĞATAY; KAYA, HANDAN; ASYA O., YUMUŞAKHUYLU A. C., BAĞCI ÇULÇİ P., KAYA H., Gonen A., Gundogdu Y., Muradov T., ŞAHİN A., OYSU Ç.Objectives. PAX8/PPARG chromosomal rearrangement is frequently seen in thyroid cancer, and PPARG overexpression has been shown in the follicular variant of papillary thyroid carcinoma, but not in papillary thyroid carcinoma other than the follicular variant. The main aim of this study was to investigate the frequency of PPARG overexpression among papillary thyroid carcinoma and if there were any variants of papillary thyroid carcinoma with PPARG overexpression other than the follicular variant. Methods. Immunohistochemical analysis of PPARG overexpression was performed using a PPARG monoclonal antibody in a series of 111 paraffin-embedded blocks of thyroid tumours. Of the patients in our study, 100 were diagnosed with papillary thyroid carcinoma, 9 with follicular adenoma and 2 with follicular carcinoma. Results. PPARG staining was detected in 19 of the 111 cases. Sixteen patients with PPARG overexpression had papillary thyroid carcinoma and 3 had follicular adenoma. Conclusion. PPARG overexpression was detected mainly in follicular-variant papillary thyroid carcinoma. Vascular invasion, lymphatic invasion, thyroid capsule invasion and lymph node positivity were lower in patients with PPARG overexpression.Publication Open Access Primer siliyer diskinezide kulak burun boğaz sorunlarına yaklaşım(Türkiye Klinikleri, 2022-01-01) YUMUŞAKHUYLU, ALİ CEMAL; ASYA, ORHAN; Yumuşakhuylu A. C., Gündoğdu Y., Asya O.Publication Open Access Evaluation of LRIG1 expression in larynx pathologies(2022-03-01) CİNEL, ZELİHA LEYLA; YUMUŞAKHUYLU, ALİ CEMAL; Gündoğdu Y., Asya O., Gönen A., Muradov T., Erçetin S. Y., Cinel Z. L., Yumuşakhuylu A. C.Objective: Studies have been performed on many biomolecules to determine the prognosis of LSCC and predict the course of the disease. However, a molecular marker that can be used clinically has not yet been found. Therefore, in this study, we aimed to investigate the expression levels of LRIG 1 in laryngeal cancer. Materials and Methods: In our study, 219 cases who underwent surgery due to LSCC and 88 randomly selected patients whose pathologic result were benign and premalignant lesions in Marmara University Pendik Education and Research Hospital between 2003 and 2018 were analyzed. Patients’ data were obtained from the medical records. The tissue microarray method was used to evaluate specimens. Results: There was a statistically significant difference between the tumor differentiation, diagnosis, and the expression of LRIG1 (respectively p=0.045, p<0.001). Also, an increase in the degree of dysplasia in premalignant lesions correlates with a decrease in LRIG1 expression (p=0.015). Conclusion: Our findings suggest that LRIG1 plays a role in the early tumorigenesis of LSCC. Therefore, LRIG1 can be a target molecule for treatment approaches. However, LRIG1 was not correlated with overall survival of the LSCC.Publication Open Access A single-center multidisciplinary study analyzing thyroid nodule risk stratification by comparing the thyroid imaging reporting and data system (TI-RADS) and American thyroid association (ATA) risk of malignancy for thyroid nodules(2022-01-01) ASYA, ORHAN; YUMUŞAKHUYLU, ALİ CEMAL; ENVER, NECATİ; İNCAZ, SEFA; GÜNDOĞMUŞ, CEMAL AYDIN; ERGELEN, RABİA; BAĞCI ÇULÇİ, PELİN; OYSU, ÇAĞATAY; ASYA O., YUMUŞAKHUYLU A. C. , ENVER N., Gündoğdu Y., Abuzaid G., İNCAZ S., GÜNDOĞMUŞ C. A. , ERGELEN R., Bağcı P., OYSU Ç.© 2022 Elsevier LtdObjectives: The thyroid imaging reporting and data system (TI-RADS) and 2015 American Thyroid Association (ATA) guidelines are two well-known risk stratification systems for classifying thyroid nodules based on cancer risk. This study aims to evaluate the diagnostic efficacy of these two systems in predicting malignancy in patients undergoing thyroid surgery. Methods: We studied data on 120 individuals who were scheduled to undergo surgery for benign or malignant nodular diseases of the thyroid gland between October 2017 and October 2019. The TI-RADS category and ultrasound pattern based on ATA guidelines were assigned to dominant thyroid nodule categories by two experienced radiologists blinded to patients’ previous thyroid ultrasonography and fine-needle aspiration biopsy results. A pathologist with experience in thyroid diseases blinded to patients’ sonographic and clinical data reviewed the thyroidectomy specimens. Results: A total of 120 patients, 88 women and 32 men, were included in our study. Final histopathological results were as follows: 50% (n=60) papillary thyroid carcinoma, 36.6% (n=44) benign nodular thyroid diseases, 4.1% (n=5) follicular adenoma, 2.5% (n=3) hurtle cell adenoma, 1.7% (n=2) follicular thyroid carcinoma, 1.7% (n=2) medullary thyroid carcinoma, 1.7% (n=2) hurtle cell carcinoma, and 1.7% (n=2) follicular tumor of uncertain malignancy potential. The sensitivity, specificity, positive predictive value, and negative predictive value for TI-RADS were 80%, 56%, 72%, and 67%, respectively, and that for ATA were 80%, 64%, 76%, and 69%, respectively. Conclusion: The TI-RADS and ATA showed similar rates of sensitivity, specificity, NPV, and PPV. Our observed risk of malignancy was higher than expected for the ACR TI-RADS 3–5 categories and the very low, low, and intermediate suspicion risk strata in the ATA guidelines. We found no difference between observed and expected malignancy risk for the ACR TI-RADS 2’s and ATA\"s high suspicion categories.Publication Open Access Texture Analysis of Thyroid Nodules Using Computed Tomography: Is it a Viable Method for Objective Assessment of Thyroid Nodules?(2024-01-01) İNCAZ, SEFA; YUMUŞAKHUYLU, ALİ CEMAL; İncaz S., Kavak Ö. T., Kersin B., YUMUŞAKHUYLU A. C.Objective: Computed aided detection (CAD) systems can be developed to help radiologists in the accurate interpretation of computed tomography (CT) images. The recently popularised texture analysis method allows for qualitative and quantitative evaluation by analysing the grey-level distribution and relationships within an image. We aimed to compare the ratios of texture analysis data in the differentiation of benign-malignant nodules with the proportions of radiologists in the distinction between benign and malignant nodules and to compare the results. Materials and Methods: Retrospectively, the data of 80 patients who underwent thyroidectomy and had contrast-enhanced neck CT preoperatively were analysed. Two radiologists, experienced in head and neck radiology, blinded to the patients’ data evaluated neck CT images. Manual marking was performed and scanned to take tissue sections from the nodule area in transverse contrast-enhanced CT images, and the size of the nodule in the contralateral normal thyroid parenchyma was almost equal. Results: The computed tomography texture analysis (CTTA) model achieved the highest sensitivity of 81.4%, followed by the first radiologist at 51.2% and the second radiologist at 55.8%. Additionally, the CTTA model achieved the highest accuracy at 61.3%, followed by the first radiologist at 41.3% and second radiologist at 47.5%. On average, the CTTA model performed significantly better than the two radiologists, especially with regard to sensitivity. Conclusion: The CTTA model was superior to both radiologists in differentiating between benign and malignant thyroid nodules. Medical experts can benefit from CTTA-based solutions to extend their understanding of thyroid nodules in their routine practise.