Immunoglobulin G4-related disease in the sigmoid colon in patient with severe colonic fibrosis and obstruction: A case report

Figure 2 Positron emission tomography/computed tomography findings. The thick-walled cystic structure above the bladder could be seen, the radioactive uptake was significantly increased, and the maximum standard uptake value reached 6.5. The diagnosis was considered inflammatory or a neoplastic lesion on the sigmoid colon adherent to the bladder. A: Coronal whole-body imaging showing high uptake values at the lesion site; B: Detailed imaging pictures of the lesion, including horizontal, sagittal and coronal.