ABSTRACT
Marsupialization provides continuous drainage, and prostatic manipulation is minimized reducing the likelihood of damage to the prostatic neurovascular supply. The cyst is anchored to the paramedian rectus abdominus muscle. The cyst membrane is incised and the fluid drained and cultured. The cyst wall is then sutured to the skin to form a semi-permanent stoma. Disadvantages include difficulty in mobilizing the cyst to reach the abdominal wall and prolonged drainage. Resection is required if the cyst cannot be mobilized sufficiently. The stoma usually closes spontaneously by eight weeks postoperatively. Biopsy of the prostate and cyst wall and castration are performed at the time of resection or marsupialization to identify neoplasia and prevent recurrence of prostatic disease by inducing involution.
