Fig. 6
From: Beyond lymph nodes: 18F-FDG PET/CT in detection of unusual sites of extranodal lymphoma
a–d GIT lymphoma. a, b Gastric lymphoma: non-uniform soft tissue mural thickening of the gastric walls more pronounced at the lesser curvature. In PET CT images, b it is intensely avid, associated with small perigastric and gastrohepatic LNs having the same activity. c, d Peritoneal lymphoma: a large metabolically active left hypochondrial peritoneal soft tissue lesion [orange arrows ] encasing the bowel anteriorly, the spleen and tail of pancreas posteriorly(not shown) (proven to be B cell lymphoma)