## **Core Concept**
The question pertains to the management of a pelvic abscess located in the cul-de-sac, which is a pouch of peritoneum in the female pelvis. The treatment of such an abscess involves drainage, which can be achieved through various methods.

## **Why the Correct Answer is Right**
The correct answer, **D. Transrectal or Transvaginal drainage**, is favoured for pelvic abscesses in the cul-de-sac because it allows for direct access to the abscess. This approach is less invasive compared to surgical options and can often be performed under ultrasound or CT guidance. Transrectal or transvaginal drainage is effective for abscesses that are accessible through these routes, reducing the need for a more extensive surgical procedure.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a viable alternative for the treatment of a pelvic abscess in the cul-de-sac.
- **Option B:** Similarly, this option is also blank and does not offer a valid treatment approach.
- **Option C:** This option is blank as well, failing to present a recognized method for managing such abscesses.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that for pelvic abscesses, especially those located in the cul-de-sac, **transvaginal or transrectal ultrasound-guided drainage** is often preferred due to its minimally invasive nature and effectiveness. This approach can reduce recovery time and the risk of complications compared to open surgical drainage.

## **Correct Answer:** **D. Transrectal or Transvaginal drainage**