A clear understanding of the anatomy of the human clitoris is important for surgical reconstruction. As in the human penis, nerves in the clitoris form an extensive network around the tunica of the corporeal body with a nerve-free zone at the midline 12 o'clock position. Care should be taken to preserve all nerves. Reduction of the glans clitoris should not violate the extensive innervation that predominates on the dorsal aspect of the glans. The normal clitoris has corporeal bodies that are smaller but analogous to those of the penis. One may consider their function when extensive resection is considered.
Increased knowledge of normal and hypospadiac penile anatomy with respect to the nerves, corporeal bodies, glans and vascularity is useful for the strategic design of penile reconstructive procedures.
Perforating branches from the dorsal lateral neurovascular bundle do not exist based on serial step sectioning and microscopic examination of male genital specimens. Surgically it is possible to elevate the neurovascular bundle but the dissection needs to remain directly on top of the tunica albuginea to prevent neuronal injury. Small perforating branches into the urethral spongiosum may be injured with unknown significance. We continue to advocate plication in the nerve-free zone at the 12 o'clock position for correction of penile curvature.
A precise understanding of penile anatomy beneath the pubic arch and at the origin of the crural bodies is important for preserving neuronal structures. This anatomy is especially germane in children undergoing posterior urethral reconstruction secondary to trauma, intersex requiring feminizing genitoplasty and severe hypospadias.
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