Double bladder (report of two unusual cases).
D000293:Adolescent; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D001743:Urinary Bladder / Q000002:abnormalities* / Q000000981:diagnostic imaging; D001745:Urinary Bladder Diseases / Q000000981:diagnostic imaging