Ultrasonographic Evaluation of Large-Bowel Obstruction With Fecal Impaction: A Case Report

Traditionally, large bowel obstruction (LBO) can be due to a neoplasm, most often colorectal cancer. Also, fecal impaction (FI) is a common disease, which occurs in a variety of ages and is significantly increased in the elderly. This case report is of LBO caused by FI, in which ultrasonography (US) proved to be useful for diagnosis and follow-up. A 60-year-old female had abdominal pain after taking a laxative as part of bowel preparation for colonoscopy. The US diagnostic findings were a marked dilation of the bowel, due to watery stool, in the ascending colon, and a clear FI, in the descending colon. Computed tomography showed similar findings to the US. There was a large amount of defecation after treatment and US demonstrated an improvement in the ileus. Ten days after admission, a colonoscopy revealed no stenosis or tumor, as a cause for the ileus.