title: Left upper quadrant mass.
mesh_terms: D000328:Adult; D003560:Cysts / Q000151:congenital / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011859:Radiography; D011877:Radionuclide Imaging; D013158:Splenic Diseases / Q000151:congenital / Q000000981:diagnostic imaging*; D014463:Ultrasonography