Flexible fiberoptic sigmoidoscopy in the emergency department.

Endoscopic examination of the large bowel is an historically old procedure. It has become an important element in the initial evaluation of colorectal disorders. Recently the flexible fiberoptic sigmoidoscope (FFS) has displaced the rigid scope because of increased patient comfort and compliance and markedly improved accuracy in diagnosing left colon lesions. The FFS is a valuable adjunct to the routine investigation of acute and chronic colorectal complaints seen in the emergency department. It has been endorsed by the American Cancer Society and is an easily learned and safe procedure when taught properly.