“…Fistulas involving the portal venous system and gastrointestinal (GI) tract rarely occur but have been reported in the literature for the gallbladder [1, 2], bile duct [3, 4, 5, 6, 7], pancreas [8, 9, 10, 11, 12, 13], small intestine [14, 15, 16, 17, 18], and colon [19, 20, 21]. Of these cases, only 2 represented fistulous communications specifically involving the main portal vein and duodenum [14, 18]and only one such case involved a fistula isolated solely to these 2 structures [18].…”