title: Spontaneous retroperitoneal hemorrhage from a ruptured hypernephroma.
abstract: The clinical presentation and roentgenographic findings of renal cell carcinoma have been consistently variable. These patients can appear with flank pain mimicking ureteral colic, flank tumors, or symptomatic metastasis [1]. Systemic cardiac manifestations including cardiomegaly with congestive heart failure due to arteriovenous fistula formation have been reported [2] Roentgenographic findings may show the tumor to be either vascular or avascular. It may present as a spontaneous perforation of the pelvic ureteral system which is demonstrated by intravenous pyelography (3). In this article, we describe a case of hypernephroma in a cyst wall causing severe spontaneous hemorrhage in the retroperitoneal space resulting in a state of hypovolemic shock.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications* / Q000175:diagnosis; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications* / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space; D012422:Rupture, Spontaneous; D012769:Shock / Q000209:etiology