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  • Title: Correlation of 18F-fluorodeoxyglucose uptake with histopathological prognostic factors in breast carcinoma.
    Author: Ekmekcioglu O, Aliyev A, Yilmaz S, Arslan E, Kaya R, Kocael P, Erkan ME, Halac M, Sonmezoglu K.
    Journal: Nucl Med Commun; 2013 Nov; 34(11):1055-67. PubMed ID: 24025919.
    Abstract:
    OBJECTIVE: This study investigated the prognostic value of [18F]-fluorodeoxyglucose (18F-FDG) uptake in breast carcinomas by comparing 18F-FDG PET/computed tomography (CT) images with histopathological and immunohistochemical prognostic factors. METHODS: This study included 136 women and four men with positive biopsy breast carcinomas who underwent 18F-FDG PET/CT imaging for initial staging. Maximum standardized uptake values (SUVmax) and tumour-to-background SUVmax ratios were calculated and compared with histopathological and immunohistochemical tumour characteristics, patient properties and axillary lymph node involvement. Calculations of SUVmax for men were performed separately. RESULTS: For the tumours in women, the mean SUVmax was 10.06±6.91 and the median SUVmax was 9.05 (0.7-35.0). Primary tumour 18F-FDG uptake and tumour-to-background SUVmax ratios were correlated with tumour size (P<0.001), histological type (P<0.001), histological grade (P=0.004), pleomorphism (P=0.010), mitosis count (P<0.001), lymphatic invasion (P=0.009), necrosis (P=0.005), oestrogen negativity (P=0.004), high Ki-67 level (P<0.001), axillary lymph node involvement (P<0.001) and triple negativity (P=0.002). High Ki-67 level (odds ratio=16; 95% confidence interval=1.6-160; P=0.016) and tumour size (odds ratio=4; 95% confidence interval=1.5-11; P=0.007) were determining factors for high 18F-FDG uptake values. Other clinicopathological and immunohistopathological parameters including progesterone receptor (P=0.211), CerbB2 overexpression (P=0.170), perineural invasion (P=0.053), intratumoural calcification (P=0.438), desmoplasia (P=0.112), tubular formation (P=0.768) and age (P=0.675) were not significantly correlated with 18F-FDG uptake. No significant relationship was observed between the tumour/contralateral breast SUVmax ratio and mitotic count, oestrogen receptor status or triple negativity. CONCLUSION: F-FDG uptake may serve as a prognostic indicator for biological behaviour in breast tumours.
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