Non-ischaemic priapism without trauma in a patient with relapsing Henoch-Schönlein purpura

Non-ischaemic priapism is a rare subtype, almost always associated with trauma. We report the case of a 26-years-old male with significant medical history of relapsing Henoch-Schönlein purpura, who presented with a painless, persistent erection for 1-week. Notably, there was no history of trauma. Nevertheless, corporal blood analysis and imaging confirmed the suspicion of non-ischaemic priapism, caused by a right intracavernosal artery fistula at the base of the penis. He underwent selective artery embolization with microcoils with immediate detumescence and no long-term sexual dysfunction.