Ureteropelvic junction obstruction.
Physicians sometimes forget nongastrointestinal causes of abdominal pain. Yet, abdominal pain was the major complaint of three patients with ureteropelvic junction obstruction (UPJ). Definitive diagnosis can be made either by a "hydration" intravenous pyelogram or by an intravenous pyelogram during an attack.
D000005:Abdomen; D000328:Adult; D000428:Alcohol Drinking; D002648:Child; D006801:Humans; D006869:Hydronephrosis / Q000175:diagnosis*; D007682:Kidney Pelvis / Q000473:pathology; D008297:Male; D010146:Pain / Q000209:etiology*; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000175:diagnosis*; D014567:Urography