title: Spontaneous extravasation of urine in chronic ureteric obstruction.
abstract: Two cases of spontaneous extravasation of urine in chronic ureteric obstruction are presented. In 1 case the long-standing partial ureteric obstruction was caused by enlarged lymphomatous glands, and extravasation was followed by a perinephric abscess. In the second case, believed to be unique, there was a moderate chronic ureteric obstruction post irradiation, and extravasation was induced by a sudden rise in intra-abdominal pressure due to vomiting.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007682:Kidney Pelvis; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous / Q000209:etiology; D014517:Ureteral Obstruction / Q000150:complications* / Q000209:etiology; D014556:Urine; D014839:Vomiting / Q000150:complications