[Renal angiomyolipoma with arteriovenous fistula causing retroperitoneal hematoma. Case report].
OBJECTIVE
To report the case of a female patient with ultrasound diagnosis of great left retroperitoneal hematoma admitted to the hospital for diagnostic workup and treatment.


METHODS
39-year-old patient presenting with intense epigastric pain irradiated to both flanks. Hematuria was not present. CT scan and arteriography led to the diagnosis of angiomyolipoma with arteriovenous fistula and subcapsular hematoma. Selective embolization was carried out.


CONCLUSIONS
Hamartomas account for 3% of kidney tumors in adults; they are composed of 3 mesodermal tissues, including blood vessels. The lack of elastic membrane in their arteries favours aneurysm development.
Adriazola
Miguel
M
Servicio de Urología, Hospital Río Carrión, Palencia, España. Madriazola@telefonica.net
Ortiz Cabria
Roberto
R
Alonso
Antonio
A
García Cobo
Emilio
E
Tejeda
Enrique
E
Romero
Francisco
F
D000328:Adult; D018207:Angiomyolipoma / Q000150:complications*; D001164:Arteriovenous Fistula / Q000150:complications*; D005260:Female; D006406:Hematoma / Q000209:etiology*; D006499:Hepatic Artery; D006503:Hepatic Veins; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications*; D012187:Retroperitoneal Space