[High-flow priapism: early diagnosis and treatment].

Contribution of a new case of high-flow priapism as clinical expression of an arterial-cavernous fistula caused by perineal injury. The diagnostic sequence was blood gasometry by means of puncture-aspiration of the cavernous body to establish the 'high-flow' taxonomical diagnose, with negative response to the intracavernous injection of vasoactive drugs; it was followed by arteriography, showing that the clinical picture was the result of an arterial-cavernous fistula, allowing at the same time a superselective therapeutic embolization. Vascular permeability and erection recovery were confirmed by ECO-doppler at the two- month assessment.