Enterolithiasis in Crohn's disease.

Enterolithiasis of the small bowel is unusual. Etiologic factors include stasis secondary to intestinal strictures or diverticula. There have been 19 reported cases of enteroliths associated with Crohn's disease and we report three additional patients. Enteroliths only occur in longstanding Crohn's disease and are important clues to the presence of underlying strictures; they may occur as a result of adenocarcinoma complicating Crohn's disease. The radiologic features of enteroliths are discussed.