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Plain abdominal radiograph showing air bowel distention in the upper abdomen and a round opacity in the left lower abdomen (arrow).
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Plain abdominal radiography revealed air bowel distention in the upper abdomen and a round opacity in the left lower abdomen (Fig. 1).
Computed tomography (CT) images.. CT image showing (a) cholecystocolic fistula (arrow) connecting the gallbladder to the transverse colon, (b) a calculus mass impacted in the sigmoid colon, and (c) left inguinal hernia (arrow).
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Computed tomography revealed cholecystocolonic fistula connecting the gallbladder to the transverse colon, large bowel obstruction secondary to a 7-cm calculus mass impacted in the sigmoid colon, and an underlying left inguinal hernia (Fig. 2).
Removal of gallstones from the sigmoid colon.
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Two gallstones (Fig. 3) were removed through an incision of the sigmoid colon, and the incision was repaired via absorbable monofilament suture.
Intraoperative findings.. The cholecystocolonic fistula was released. The arrow indicates the fistula on the colonic side.
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Then, cholecystocolonic fistula was released (Fig. 4).