The clinical presentation and CT features are in keeping with a large tubo-ovarian abscess on the right side and pre-uterine intraperitoneal air-fluid collection complicating dehiscence of the lower segment cesarean section incision.

Risk factors for tubo-ovarian abscesses include:

• previous pelvic inflammatory disease

• intrauterine device

• multiple sexual partners

• diabetes mellitus

• immunosuppression

• history of uterine surgery