A case of multiple colonic adenomas which were found incidentally in FDG-PET

Shin, Sung Jae; Choi, Jong Won; Lee, Sang Kil; Choi, Chang Hwan; Kim, Tae Il; Kim, Won Ho

Abstract

Positron emission tomography (PET), performed after administration of F-18-fluoro-2-deoxy-D-glucose (FDG), has been shown to be useful in detection of a wide variety of tumors. It is now well established that many malignancies show increased FDG uptake due to enhanced glycolytic rate compared with surrounding benign tissues. Colorectal cancer is avid for FDG, and preliminary studies suggest a strong potential role of FDG-PET scanning in imaging studies of patients with colorectal cancer. On the FDG-PET image, areas of focal FDG accumulations suggesting colonic lesions may be seen, in asymptomatic patients. Colonoscopy, regarded as the gold standard for the detection of both polyp and cancer, should be performed in such cases. We experienced a case of multiple colonic adenomas, which were incidentally found as two masses of intensely increased FDG uptake in proximal transverse colon and splenic flexure. We confirmed the adenomas by colonoscopy and herein report this case with a review of literature.