Fig. 10
From: Diverticulitis: a comprehensive review with usual and unusual complications
Colovesical fistula in a 46-year-old male after diverticulitis. a Axial contrast-enhanced CT of a 62-year-old woman reveals a fluid collection (arrows) in the Douglas pouch with air content and peripherally enhancing wall. b Contrast-enhanced CT reveals thickening of left bladder wall (arrow) adjacent to the diverticulum. c Coronal contrast-enhanced CT performed 5 months after first CT demonstrates a fistula (arrow) between the sigmoid colon and the bladder