American Journal of Roentgenology, Vol 173, 25-29, Copyright © 1999 by American Roentgen Ray Society

ARTICLES

Imaging of adrenal tumors using FDG PET: comparison of benign and malignant lesions

S Maurea, C Mainolfi, L Bazzicalupo, MR Panico, C Imparato, B Alfano, M Ziviello and M Salvatore
Medicina Nucleare e Radiodiagnostica, Istituto Nazionale dei Tumori, Naples, Italy.

OBJECTIVE: The aim of this study was to differentiate benign from malignant adrenal tumors using positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) in patients with unilateral adrenal masses originally detected by CT or MR imaging. CONCLUSION: PET imaging with FDG can metabolically characterize adrenal masses. Abnormally increased FDG uptake in adrenal malignancies allows one to differentiate these abnormalities from benign lesions. Whole-body PET can also reveal extraadrenal tumor sites in patients with malignant tumors, using a single imaging technique for accurate disease staging.
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