TY - JOUR T1 - Gallstone ileus of the sigmoid colon: an extremely rare cause of large bowel obstruction detected by multiplanar CT. AU - Carlsson,Tarryn, AU - Gandhi,Sanjay, Y1 - 2015/12/18/ PY - 2015/12/20/entrez PY - 2015/12/20/pubmed PY - 2016/9/22/medline JF - BMJ case reports JO - BMJ Case Rep VL - 2015 N2 - Gallstone ileus of the sigmoid colon is an important, though extremely rare, cause of large bowel obstruction. The gallstone often enters the large bowel through a fistula formation between the gallbladder and colon, and impacts at a point of narrowing, causing large bowel obstruction. We describe the case of an 80-year-old woman who presented with features of bowel obstruction. Multiplanar abdominal CT demonstrated a cholecystocolonic fistula in exquisite detail. The scan also showed obstruction of the colon due to a large gallstone impacted just proximal to a stricture in the sigmoid. Owing to inflammatory adhesions and a stricture from extensive diverticular disease, the gallstone could not be retrieved. This frail and elderly woman was treated with a loop colostomy to relieve bowel obstruction. The patient made an uneventful recovery. SN - 1757-790X UR - https://www.unboundmedicine.com/medline/citation/26682834/Gallstone_ileus_of_the_sigmoid_colon:_an_extremely_rare_cause_of_large_bowel_obstruction_detected_by_multiplanar_CT_ DB - PRIME DP - Unbound Medicine ER -