Pelvic collections after appendicectomy
Perforated acute appendicitis followed by appendicectomy 7 days earlier. Now has global tenderness and raised inflammatory markers.
CT abdomen and pelvis
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Posteromedial and inferior to the appendicectomy clips, there is a 50 mm fluid density collection with enhancing margins. Posterior to the uterine cervix, there is a 30 mm collection.
Collections identified a few days after bowel surgery may be due to leaks from anastomoses, evolution of haematomas, or from undrained pockets of infected fluid which have matured.