Colovesical fistula as the initial manifestation of advanced colon cancer: A case report and review of literature

Figure 1 Computed tomography scan - axial view. A heterogeneously thickened bowel wall with an infiltrating tumor and separated fluid collection with air bubbles. The scan is suggestive of a perforated sigmoid tumor and an adjacent intraperitoneal abscess.

Figure 2 Cystography - an oblique projection. An aqueous solution of the contrast medium was administered through a Foley catheter. A poorly filled urinary bladder with an irregular outline, a thickened and trabeculated wall. The contrast escapes upward and forms an irregular shape, which is the origin of the strip that contrasts a colon loop. The X-ray is suggestive of a colovesical fistula.