An enterocele is best described as a pouching of peritoneum between which structures?

• A. Protrusion of the bladder through the anterior vaginal wall.
• B. Pouching sac of peritoneum between the vagina and the rectum.
• C. Prolapse of the uterus.
• D. Prolapse of the small intestine into the vaginal canal.

Answer: (B)

Enterocele is a herniation of the peritoneal lining of the rectouterine pouch that protrudes into the vaginal canal, forming a pouch between the vagina and the rectum. This condition involves the peritoneal sac (often with small bowel) herniating into the posterior vaginal fornix, distinguishing it from cystocele (bladder bulging into the anterior vaginal wall) and rectocele (rectum bulging into the posterior vaginal wall).