High-flow priapism is characteristically diagnosed on clinical findings: a prolonged, non-painful erection with a delayed onset that develops after a penile or perineal trauma. If conservative measures fail arteriography is indicated, which shows a blush of extravasating contrast from an arterio-cavernous fistula (rarely, as in our case bilateral) that can be treated by embolization. The embolic agent is gelfoam or a microcoil. Bilateral embolization is indicated when unilateral treatment does not result in detumescence of the penis. When the embolization is done highly selective the risk of complications is low and the results on erectile function are good.

中文翻译：

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创伤后阴茎动脉阴茎异常勃勃的双侧海绵状动脉高度选择性栓塞术。

高流量性阴茎异常勃起症的特征是根据临床发现进行诊断：阴茎或会阴部创伤后出现长期，无痛性勃起，发病延迟。如果采取保守措施失败，则需行动脉造影，这表明可从动脉海绵窦瘘（罕见，在本例中为双侧）中渗出的对比度可通过栓塞治疗。栓塞剂是明胶泡沫或微线圈。当单侧治疗未导致阴茎脱瘤时，则表明双侧栓塞。栓塞高度选择性时，发生并发症的风险较低，勃起功能检查的结果也良好。