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    Advanced multiple myeloma with negative bone marrow biopsy and positive soft tissue lesions in the F-18-FDG PET/CT scan
    (Hellenic Soc Nuclear Medicine, 2008) Ceneli, Ozcan; Haznedar, Rauf
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    Celiac disease prevalence in patients with iron deficiency anemia of obscure origin
    (Turkish Soc Gastroenterology, 2009) Ucardag, Derya; Guliter, Sefa; Ceneli, Ozcan; Yakaryilmaz, Fahri; Atasoy, Pinar; Caglayan, Osman
    Background/aims: Anemia, especially due to iron deficiency, is a frequent feature in celiac disease. In this study, we aimed to define the prevalence of celiac disease in Turkish patients with iron deficiency anemia of obscure origin. Methods: One thousand four hundred and eighty-six consecutive patients with iron deficiency anemia were evaluated for etiology. Of those, 77 patients were found to have iron deficiency anemia of obscure origin. Sera from 77 patients with iron deficiency anemia of obscure origin and 119 healthy controls were tested for IgA and IgG tissue transglutaminase (tTG) antibodies by ELISA. Endoscopic mucosal biopsies were taken from the second part of the duodenum in these patients. Histopathologic examination results of patients were stratified according to Marsh classification. Results: IgA and IgG class anti-tTG antibodies were found positive in 6 (7.8%) and 3 (3.9%) patients with iron deficiency anemia of obscure origin, respectively. Three patients had only IgA anti-tTG and 3 had both IgA and IgG anti-tTG antibodies. In the control group, 1 subject was positive for both IgA and IgG anti-tTG antibodies (0.7%). Six patients (7.8%) and 1 control subject (0.8%) had histopathologic findings of celiac disease (p=0.02). Conclusions: Patients with iron deficiency anemia of obscure origin had increased prevalance of celiac disease. Our study results suggest that serological screening may be recommended for early detection of celiac disease in patients with iron deficiency anemia of obscure origin.
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    Outcome of Thrombotic Thrombocytopenic Purpura Patients: A Single-Center Experience
    (Galenos Yayincilik, 2019) Ceneli, Ozcan; Yilmaz, Seda; Karaselek, Mehmet Ali; Camli, Kazim
    [Abstract No tAvailable]
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    Value of 18F-fluorodeoxyglucose uptake in positron emission tomography/computed tomography in predicting survival in multiple myeloma
    (Springer, 2011) Haznedar, Rauf; Aki, Sahika Z.; Akdemir, Ozgur U.; Ozkurt, Zubeyde N.; Ceneli, Ozcan; Yagci, Munci; Unlu, Mustafa
    We assessed the role of the maximum standardized uptake value (SUVmax) of bone marrow and the extramedullary lesion with the highest SUVmax in positron emission tomography/computed tomography (PET/CT) of newly diagnosed multiple myeloma (MM) patients in predicting overall survival (OS). A total of 61 newly diagnosed patients (55 MM and 6 plasmacytoma) were enrolled in the study [37 men and 24 women with a median age of 57 years (range 28-80 years)]. The SUVmax of bone marrow and the extramedullary lesion in PET/CT was correlated with the levels of beta(2)-microglobulin, C-reactive protein (CRP), albumin, creatinine, per cent of bone marrow plasma cells, serum free light chain (FLC) ratio, International Staging System (ISS) score and Durie-Salmon stage. The extramedullary lesion with the highest SUVmax showed significant correlation with bone marrow fluorodeoxyglucose (FDG) uptake (p = 0.027) and near significant correlation with ISS (p = 0.048). Bone marrow SUVmax correlated significantly with the per cent of bone marrow plasma cell count (p = 0.024), CRP (p = 0.012) and ISS (p = 0.013). In stage III MM the mean values of SUVmax in extramedullary lesions were significantly higher than stages I and II (6.23 +/- 6.32 vs 2.85 +/- 3.44, p = 0.023). The serum FLC ratio did not show any correlation with SUVmax of lesions and bone marrow (p > 0.05). Forty-four MM patients with FDG-positive lesions in PET/CT showed inferior 5-year estimated survival (61.73%) when compared to 11 patients without FDG-positive lesions, all of whom were alive (p = 0.01). In multivariate analysis an extramedullary lesion with the highest SUVmax was the only independent predictor of OS (p = 0.03). PET/CT allows identification of high-risk myeloma patients, and extramedullary lesions with the highest SUVmax independently predict inferior OS.