Chilaiditi's Syndrome on Tc-99m Hexamethylpropylene Amineoxime Imaging

摘要

A 71-year-old man with ulcerative colitis, which was clinically unresponsive to steroid therapy, was evaluated because of an acute exacerbation of his disease. A Tc-99m-labeled hexamethylpropylene amineoxime leukocyte scan was performed to assess the site, extent, and severity of the disease. This information was necessary in considering the suitability of surgical resection and to aid surgical planning. The scan showed prominent increased uptake in the right side of the colon, which was seen to be interposed between the liver and the diaphragm-Chilaiditi's syndrome. The presence of active inflammatory bowel disease in the interposed segment of the colon subsequently was confirmed at colectomy.