[Superselective endovascular treatment of renal artery aneurysms with detachable microcoils].

Selective transcatheter embolization using an interlocking detachable coil was performed in two cases with renal artery aneurysms. Case 1, a 73-year-old male, was referred to our department complaining of macrohematuria persisting for three days. Case 2, a 52-year-old female, visited our department because calcifications in both renal pedicle areas were found in a health check up. Drip infusion pyelography (DIP) and computerized tomography (CT) revealed in case 1 an aneurysm which was 11 x 10 cm in diameter with nearly circumferential calcification in the right renal pedicle area and in case 2 two aneurysms, one 12 x 10 cm in the right and one 22 x 20 cm in the left with imperfect calcification. Enhanced CT confirmed blood flow in the aneurysms. Because abdominal surgery, was considered to be a highrisks in both cases 1 and 2 the coil embolization was performed. The patients have been followed up after the embolization without any particular complications or changes in the coil location.