ABSTRACT

The penile veins comprise the superficial dorsal veins, the intermediate venous system, and the deep system (5). The superficial dorsal veins are small venous channels in the subcutaneous layer of the skin and subcutaneous tissue of the penis. The superficial dorsal veins of the penis drain into the superficial external pudendal vein. The intermediate system includes the venae circumflexae and the deep dorsal veins; it is formed from the sinusoids of the CC, which empty into small venules under the tunica albuginea (5,8,9). Small venules then form subtunic venular plexuses that perforate the tunica albuginea as the emissary veins. The emissary veins course obliquely through the tunica albuginea to join the deep dorsal vein (2,3). The deep system includes the cavernous and crural veins. The proximal third of the penis is drained by the cavernous

veins, which arise from the penile hilum. The crural veins arise on the dorsomedial surface of each corpus cavernosum and drain into the internal pudendal vein (5,8,9).