[Renal angiomyolipoma located intrasinusally. An anomalous location which poses diagnostic problems]

Presentation of one case of intrasinusale located renal angiomyolipoma. Given the location, the ECO as well as the IVU, arteriography and CAT presented diagnostic doubts. We believe this unusual presentation should be added to those circumstances where uncertainty of tumor diagnosis due to size, behaviour or clinical signs and symptoms, elicits a more aggressive attitude.