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The superficial dorsal vein of the penis belongs to the superficial drainage system. It is located within the superficial dartos fascia, a continuation of the Colles' fascia, on the dorsal surface of the penis and, in contrast to the deep dorsal vein, it lies outside the deeper Buck's fascia. [2]
(A) A case of penile strangulation by a cable tie at the root of the penis. Both veins and arteries were compressed. (B) Penile ulcer at the root of the penis one week after the removal of the encircled object. The strangulation caused the permanent loss of sensation of the penis.
The deep dorsal vein of the penis, the cavernosal veins of the penis, and the para-arterial veins of the penis are inside Buck's fascia, but the superficial dorsal veins of the penis are in the superficial fascia immediately under the skin.
Buck's fascia is superficial to the tunica albuginea and covers all of the structures described. [1] Venous drainage is performed by the deep and superficial dorsal veins of the penis. The dorsal arteries of the penis are located adjacent to the deep dorsal vein and a cavernous artery is located in the center of each corpus cavernosum.
It is caused by rapid blunt force to an erect penis, usually during vaginal intercourse, or aggressive masturbation. [4] It sometimes also involves partial or complete rupture of the urethra or injury to the dorsal nerves, veins and arteries. [5]
Venous leak is an inability to maintain an erection in the presence of sufficient arterial blood flow through the cavernosal arteries of the penis. [6] The defect lies in the excessive drainage of veins in the cavernosal tissue of the penis, which undermines normal erectile function.
Blood can leave the erectile tissue only through a drainage system of veins around the outside wall of the corpus cavernosum. The expanding spongy tissue presses against a surrounding dense tissue (tunica albuginea) constricting these veins, preventing blood from leaving. The penis becomes rigid as a result.
The penile portion is referred to as the superficial fascia of penis or the subcutaneous tissue of penis, [2] while the scrotal part is the dartos proper. In addition to being continuous with itself between the scrotum and the penis, it is also continuous with Colles' fascia of the perineum and Scarpa's fascia of the abdomen.