Fig. 7.

In a 17-year-old male with clinical evidence of peritonitis 12 days after LA for AA at another hospital, contrast-enhanced MDCT showed the pouch of Douglas occupied by a vast abscess (*) with thickened enhancing borders and fluid content with gas bubbles, which compressed the urinary bladder anteriorly and communicated (thin arrows) with another smaller collection in the right iliac fossa (arrowheads). Laparotomy confirmed pelvic and pericaecal abscesses, and the surgical procedure necessitated positioning of a temporary ileostomy