RESUMEN
<p><b>OBJECTIVES</b>To investigate the correlation between corpus cavernosum disruption and high-flow priapism for the understanding of high-flow priapism and its treatment.</p><p><b>METHODS</b>To report the clinical data of a case of spontaneous idiopathic high-flow priapism.</p><p><b>RESULTS</b>The diagnosis was made as right cavernosal artery disruption after angiography. The result of cavernosal blood gas analysis was normal. The penis became detumescent after the gelatin embolization treatment was performed.</p><p><b>CONCLUSIONS</b>Spontaneous high-flow priapism of old people(non-ischemic) is rare in clinic. Blood gas analysis and angiography are needed to find the hemorrhage site when conservative treatment fails. Gelatin embolization or cavernosal artery ligation are usually effective in the subsequent treatment.</p>