Appendiceal abscess causing urinary obstruction.
D000038:Abscess; D000293:Adolescent; D001064:Appendicitis / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D014567:Urography