Direct Visualization of F-18-Fluorodeoxyglucose Accumulation in Feces

Abstract

Although colonic F-18-fluorodeoxyglucose uptake is extremely common in whole-body positron emission tomography-computed tomography, direct visualization of fecal FDG accumulation in a clinical setting has not been reported. Here we report direct visualization of fecal FDG accumulation in the colostomy bag of a 75-year-old man with an 8-month history of rectal cancer. Although the mechanism of colonic FDG uptake is complex which includes both physiologic and pathologic factors, fecal FDG accumulation at least partially contributes to colonic FDG activity.