Renal angiomyolipoma rupture: Case report Rotura de angiomiolipoma: Relato de caso

Generally benign, renal angiomyolipomas are neoplasms composed of mature adipose tissue, smooth muscle, and thick-walled blood vessels. Although asymptomatic, massive retroperitoneal hemorrhage from angiomyolipomas accompanied by hypovolemic shock has been found in up to 10% of patients, usually those with large tumors. We report the case of a 33-year-old woman with spontaneous rupture of an angiomyolipoma, who was initially treated with embolization of the lesion in order to stabilize her clinical condition, and later submitted to a partial nephrectomy.