Assessment of incidental focal colorectal uptake by analysis of fluorine-18 fluorodeoxyglucose positron emission tomography parameters

Figure 1 A case with malignant incidental focal ascending colon fluorine-18 fluorodeoxyglucose uptake. A: Focal uptake (black arrow) in the right abdomen on the maximum intensity projection (MIP) image of a 67-year-old man diagnosed with intrahepatic cholangiocarcinoma; B and C: Axial images of fused positron emission tomography/computed tomography (B, white arrow) and positron emission tomography only (C, black arrow) indicating focal uptake of the MIP image (maximum standardized uptake value 9.0); D: Visualization of the lesion by colonoscopy. The lesion was histopathologically diagnosed as an adenocarcinoma of the ascending colon.