title: Intra- and retroperitoneal varices simulating lymphomatous nodes--differentiation by duplex ultrasound.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications; D008198:Lymph Nodes / Q000473:pathology*; D008223:Lymphoma / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010537:Peritoneum / Q000098:blood supply*; D012187:Retroperitoneal Space / Q000098:blood supply*; D014463:Ultrasonography; D014648:Varicose Veins / Q000175:diagnosis*