Fig. 6From: Assessment of water enema PET/CT: an effective imaging technique for the diagnosis of incidental colorectal 18F-FDG uptakeA small lesion hidden in diffuse 18F-FDG uptake. Strong diffuse 18F-FDG uptake in the colorectum with a collapsed bowel is shown on the CT scan (A-C). After water enema, diffuse 18F-FDG uptake disappeared except for a focal 18F-FDG-avid lesion in the sigmoid with localized wall thickening (D-F, red arrow)Back to article page