PMC9345499_01
(A) Abdomen ultrasound showing an encapsulated abscess between bladder and uterus (arrow). (B-E) Abdomen MRI showing a pelvic large fluid-filled abscess (arrows) with air bubbles such as for bowel perforation (B-D: T2 weighted) with parietal contrast enhancement (E: T1 weighted) and normal adnexal region (arrowheads).
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Thus, abdominal ultrasound was repeated, documenting an uneven multi-chambered area of 8x3 cm with a small aerial component ( Figure 1 ). Abdominal magnetic resonance imaging revealed a large, fluid-filled pelvic abscess with air bubbles suspect for bowel perforation, with parietal contrast enhancement ( Figure 1 ).