Person: MALYA, FATMA ÜMİT
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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 The correlation between breast cancer and urinary iodine excretion levels(2018-02-01) Malya, FATMA ÜMİT; Kadioglu, HÜSEYİN; Hasbahçeci, Mustafa; Dolay, KEMAL; Guzel, MEHMET; Ersoy, YELİZ EMİNE; MALYA, FATMA ÜMİT; KADIOĞLU, HÜSEYİN; DOLAY, KEMAL; GÜZEL, MEHMET; ERSOY, YELIZ EMINEObjective To compare urinary iodine excretion levels in patients with breast cancer and control subjects. Methods In this prospective pilot study, patients with breast cancer and normal controls were recruited. Age and menopausal status were recorded. Levels of serum thyroid-stimulating hormone, blood urea nitrogen and creatinine and urine iodine concentration (UIC) were measured. UIC levels were divided into three categories: low (<100 µg/l), normal (100-200 µg/l) or high (>200 µg/l). Results A total of 24 patients with breast cancer and 48 controls were included in the study. There were no statistically significant differences between the two groups with regard to thyroid-stimulating hormone, blood urea nitrogen or creatinine levels. When considered overall, there was no statistical difference in UIC between patients and controls. However, comparisons within each category (low, normal or high UIC) showed a significantly higher percentage of patients with breast cancer had a high UIC compared with controls. Conclusions A high UIC was seen in a significantly higher percentage of patients with breast cancer than controls. UIC may have a role as a marker for breast cancer screening. Further studies evaluating UIC and iodine utilization in patients with breast cancer are warranted.Publication Metadata only Contribution of diffusion-weighted imaging to dynamic contrast-enhanced MRI in the characterization of papillary breast lesions(2018-03-01T00:00:00Z) YILDIZ, ŞEYMA; TOPRAK, HÜSEYİN; ERSOY, YELİZ EMİNE; MALYA, Fatma Ümit; Bakan, Ayse Ahsen; Aralasmak, Ayse; GÜCİN, ZÜHAL; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİN; ERSOY, YELIZ EMINE; MALYA, FATMA ÜMİT; ARALAŞMAK, AYŞE; GÜCİN, ZÜHALPapillary lesions have a broad spectrum of appearances on magnetic resonance imaging (MRI). The purpose of this study was to evaluate whether apparent diffusion coefficient (ADC) values of papillary lesions can be used to characterize lesion as benign or malignant. This retrospective study included 29 papillary lesions. Diagnostic values of dynamic contrast-enhanced MRI (DCE-MRI), DWI-ADC, and DCE-MRI plus DWI-ADC were separately calculated. The malignant papillary lesions (0.744x10(-3)mm(2)/s) exhibited significantly lower mean ADC values than the benign lesions (1.339x10(-3)mm(2)/s). Addition of DWI to standard DCE-MRI provided 100% sensitivity. We hypothesized that this combination may prevent unnecessary excisional biopsies.