Diverticulitis with colovesical fistula

Case contributed by Jack Ren


Recurrent UTI. Cystoscopy revealed pus coming from opening left wall bladder. ? abscess ? fistula

Patient Data

Age: 70 years
Gender: Female

The proximal sigmoid colon diffusely thickened and with serosal stranding, an appearance typical of chronic diverticulitis.

There is a focal perforation, which abuts the bladder forming a thick serosal/mural reaction encompassing a 2.4 cm cavity.

This presumably communicates via a tiny punctum with the bladder cavity, as a tiny gas locule is present, but no rectal contrast has passed through.

Although unlikely, it is impossible to exclude a coexisting tumour within this segment.

The process does not involve the adjacent left ovary but there is minor thickening of the left broad ligament.

The ovaries and uterus are otherwise unremarkable.

Rest of bowel is unremarkable.

The liver, gallbladder, pancreas, spleen, adrenal glands and kidneys are unremarkable.

In particular, the left ureter is not involved in this inflammatory process.


8 cm long segment of an inflamed proximal sigmoid colon (likely diverticular disease), with focal perforation onto the anterolateral wall of the adjacent bladder, forming a chronic fistula with a cavity that measures 2.4 cm in size.

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Case information

rID: 30391
Published: 12th Feb 2015
Last edited: 15th Oct 2018
Inclusion in quiz mode: Included

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