We report 2 cases of high-flow priapism following perineal trauma. Dia
gnosis included blood gas analysis from the corpora cavernosa and angi
ography of the internal iliac arteries showing arteriocavernous fistul
a in both patients. Treatment included superselective embolization of
the involved arteries using a microspiral. The first patient was a 29-
year-old man with priapism for 43 hours prior to admittance. Conservat
ive treatment remained unsuccessful and embolization of both bulbouret
hral arteries led to rapid recovery. At 6 months follow-up erectile fu
nction was normal, In the second case, an Ii-year-old boy presented wi
th priapism for 9 days. Conservative treatment failed and the angiogra
m showed an injury of the right perineal artery. After embolization of
this vessel and both bulbourethral arteries, the patient had immediat
e detumescence. He made an uneventful recovery and erectile function w
as normal at 4 months follow-up. Both cases demonstrate the benefit of
angiography with potential superselective embolization in posttraumat
ic high-flow priapism after unsuccessful conservative treatment.