Venous intravasation of barium into the inferior mesenteric vein mimicking a coloureteral fistula: a case report and literature review.

Venous intravasation of barium following a barium enema is a rare event. We report a case of barium venous intravasation into the inferior mesenteric vein. Because of the close proximity to the course of the left ureter, this condition was interpreted initially as a coloureteral fistula. After further analysis of the original films, and left retrograde pyelography the true diagnosis was established. A literature review of barium intravasation is presented.