pouch of Douglas
Deepest part of the peritoneal cavity between the uterus and rectum, frequently examined during laparoscopy.
Full Definition
Also known as the rectovesical pouch or posterior cul-de-sac, this anatomical landmark represents the most dependent part of the peritoneal cavity in women. During laparoscopic procedures, surgeons routinely inspect the pouch of Douglas for pathology including endometriosis, adhesions, free fluid, or malignancy. It is a common site for endometrial implants and can be obliterated by severe endometriosis, making surgical dissection challenging.
Usage
Usage note: Named after anatomist James Douglas; capitalize when referring to the eponym.
In Context
- "Inspection of the pouch of Douglas revealed multiple endometrial implants requiring excision." — operative report
- "The pouch of Douglas was completely obliterated by dense adhesions." — laparoscopic findings