[Usefulness of CT Colonography for a Patient with Three Synchronous Primary Descending Colon Cancers].

An 81-year-old woman presented with melena. Colonoscopy showed descending colon cancer, but the oral side of the tumor was excluded from observation because of easy bleeding related to the stenosis. CT colonography to evaluate the oral end of the intestine revealed 2 lesions in addition to the lesion observed on endoscopy. Before the surgery, the patient was suspected to have 3 synchronous primary descending colon cancers and underwent left hemicolectomy. Because CT colonography revealed synchronous multiple colon cancers in the patient, we performed surgery in one stage.