Person: YILDIZ, ŞEYMA
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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 Open Access Stab injury of the thoracic aorta: computed tomography findings.(2013-01-01) Yildiz, S; Toprak, HÜSEYİN; SERTER, ASLI; KOCAKOÇ, ERCAN; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİNStab injury of the thoracic aorta is a rare condition with high mortality rate. Patients must be evaluated carefully, and the diagnosis usually should be confirmed by radiological modalities. In this case, we report a 37-year-old man presented with a penetrating stab injury to the upper back and the thoracic aorta, and the diagnostic role of computed tomography is discussed.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 Open Access CT and MRI Findings of Hepatic Involvement in Rendu-Osler-Weber Disease.(2012-01-01) Bilgin, MEHMET; Yildiz, S; Toprak, HÜSEYİN; AHMAD, ISSAM CHEIKH; KOCAKOÇ, ERCAN; BİLGİN, MEHMET; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİNRendu-Osler-Weber disease is a rare autosomal dominant disorder. Hepatic involvement manifests itself as vascular, parenchymal, and biliary lesions with characteristic telangiectasias and vascular shunts. In a 37-year-old female patient, dynamic contrastenhanced upper abdominal CT and MRI were performed. CT and MRI revealed dilated celiac trunk and hepatic artery. On early arterial phase, dilated hepatic veins showed significant enhancement. On arterial and portal venous phases, liver showed significantly heterogeneous contrast enhancement and showed homogenous enhancement in the hepatic parenchymal phase. On the magnetic resonance cholangiopancreatography, irregular biliary ducts with strictures and dilatation were seen.Publication Open Access Integration of ultrasound findings with Alvarado score in children suspected appendicitis(2014-01-01) TOPRAK, HÜSEYİN; KILINCASLAN, HUSEYIN; AHMAD, ISSAM CHEIKH; YILDIZ, ŞEYMA; BİLGİN, MEHMET; SHARIFOV, RASUL; ACAR, MURAT; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMA; BİLGİN, MEHMET; SHARIFOV, RASULPublication Open Access Correlation between Breast Arterial Calcification and the 10-year fatal cardiovascular risk by means of the SCORE Risk System.(2018-11-01T00:00:00Z) Yildiz, S; Yildiz, A; Toprak, HÜSEYİN; Kocas, C; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİNObjectives: The aim of this study was to investigate the relationship between Breast Arterial Calcification (BAC) on mammography and the 10-year fatal Cardiovascular Disease (CVD) risk by using SCORE risk system. Methods: The study was conducted from September 2013 to July 2014. A total of 66 women with BAC and 66 age-matched controls without BAC were analyzed. The groups were compared with respect to demographics, clinical, reproductive, laboratory parameters, and 10-year fatal CVD risk. Results: The mean ages of the women in the study was 54.0 years (40-85 years). Hypertension, systolic blood pressure, levels of serum total cholesterol and the calculated SCORE risk were higher in the BAC (+) group than in the BAC (-) group (p=0.04, p=0.031, p=0.046, and p=0.038 respectively). Multivariate analysis showed that none of them was independent factor of BAC on mammograms, only the 10-year fatal CVD risk was close to being statistically significant (OR:1.17, CI:0.98-1.38, p=0.06). Conclusion: BAC on mammography was found to be related to the 10-year fatal CVD risk as calculated by the SCORE risk score system. Additional large-scale prospective studies are required to further assess whether BAC can be considered a useful screening tool for CVD risk prediction in women who screened for breast cancer by mammography.Publication Open Access Epithelioid Myofibroblastoma in an Old-Male Breast: A Case Report with MRI Findings.(2015-01-01) YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAK; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAKMyofibroblastoma of the breast (MFB) is a very rare benign stromal tumor. In recent years, increase in mammographic screenings has resulted in increased diagnosis of MFB. Most cases are old males and postmenopausal women. MFB may be confused as malignant, clinically, morphologically, or by imaging. Immunohistochemistry is essential for final diagnosis in these cases. We report a case of a pathologically diagnosed MFB in an 80-year-old male patient who had coexisting prostate cancer and describe its imaging characteristics, especially magnetic resonance imaging (MRI). In this paper, histopathological and MRI findings of the MFB were discussed.Publication Open Access The effectiveness of Power Doppler vocal fremitus imaging in the diagnosis of breast hamartoma(2014-09-01) Yildiz, Seyma; BAKAN, Ayse Ahsen; Aydin, SİNEM; Kadioglu, HÜSEYİN; SERTER, Asli; Bilgin, Sennur; Alkan, ALPAY; YILDIZ, ŞEYMA; AYDIN, SİNEM; KADIOĞLU, HÜSEYİN; ALKAN, ALPAYObjectives: To evaluate the usefulness of power Doppler vocal fremitus (PDVF) breast sonography for differentiation of hamartomas from other breast (malign or benign) masses. Material and methods: Two hundred and six breast masses in 180 women were evaluated. The breast lesions were scanned first by mammography (MG), then by ultrasonography (US) with PDVF imaging. Finally, biopsy was performed on lesions suspicious for malignancy (n=172). We used PDVF imaging to evaluate whether the Power acoustic Doppler artifact existed in all breast lesions. Results: Pathology results of 172 biopsied lesions showed that 83 were malign and 89 masses were benign. Totally 39 breast hamartomas were diagnosed radiologically (n=25) or histopathologically (n=14). All hamartomas (n=39) produced the power acoustic Doppler artifact as the surrounding tissue at the same depth in PDVF imaging. On the other hand, none of the malign or benign lesions, apart from hamartomas, evidenced a similar vibrational artifact as the surrounding tissue at the same depth in the PDVF imaging. Conclusion: PDVF imaging during breast sonography is an invaluable technique in the identification of breast hamartomas from other benign or malign breast masses.Publication Open Access Craniocervical Dissections: Radiologic Findings, Pitfalls, Mimicking Diseases: A Pictorial Review(2018-01-01) MEHDI, Elnur; Aralasmak, AYŞE; Toprak, HÜSEYİN; Yildiz, Seyma; Kurtcan, SERPİL; Kolukisa, MEHMET; Asil, TALİP; Alkan, ALPAY; ARALAŞMAK, AYŞE; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMA; KURTCAN, SERPİL; KOLUKISA, MEHMET; ASİL, TALIP; ALKAN, ALPAYBackground: Craniocervical Dissections (CCD) are a crucial emergency state causing 20% of strokes in patients under the age of 45. Although DSA (digital substraction angiography) is regarded as the gold standard, noninvasive methods of CT, CTA and MRI, MRA are widely used for diagnosis. Aim: Our aim is to illustrate noninvasive imaging findings in CCD. Conclusion: Emphasizing on diagnostic pitfalls, limitations and mimicking diseases.Publication Open Access Value of Shear Wave Elastography for differentiating benign and malignant renal lesions.(2018-02-04) AYDIN, S; YILDIZ, S; TURKMEN, I; SHARIFOV, RASUL; UYSAL, O; Gucin, ZÜHAL; ARMAGAN, A; KOCAKOC, E; YILDIZ, ŞEYMA; SHARIFOV, RASUL; UYSAL, ÖMER; GÜCİN, ZÜHALAims: To investigate the diagnostic accuracy of shear-wave elastography (SWE) for assessing malignant and benign kidney masses. Materials and methods: Forty patients with solid renal masses underwent US elastographic evaluation. SWE values of the lesions and adjacent cortical renal parenchyma and SWER were detected prospectively. Malignant tumors were recorded as group 1 and benign tumors were recorded as group 2. Results: The highest elasticity values were 27.27±25.66 kPa for group 1 and 16.13±8.89 kPa for group 2. The mean±SD elasticity values for adjacent renal cortex for groups 1 and 2 were 2.7±2.08 and 2.75±1.35, respectively. For group 1, a negative correlation was observed between the age of the patients and SWER value (p=0.047, rs=-0.401). There was also a negative correlation between the SWER value and the SWE value of adjacent renal cortex (p=0.004, rs=-0.555). Conclusion: SWE is a noninvasive method that provides quantitative elasticity information on tissues. Overlaps among different types of renal lesions may be due to heterogeneity of the lesions. Larger study groups may clarify the other factors affecting SWE values under both normal and pathological conditions. Keywords: ultrasonography; elastography; renal neoplasm