ENTEROLITHIASIS, or the formation of stones in the small intestine, is seldom encountered in man. Chomel1 in 1710, first recorded a case of duodenal diverticulum with stone formation in an autopsy on a woman. Williams, in 1908, reported a case of enterolithiasis of the small bowel occurring in an 11-year-old boy with a calculus in the lower ileum. Ewards,2 in 1930, reviewed the literature and noted 15 cases of various types of enteroliths causing obstruction in addition to the case he reported of a large stone near the ileocecal valve. De Witt et al3 described seven cases of primary calculi of the small bowel causing intestinal obstruction up to 1943. They also added a case report of a calculus found in the lower ileum in a patient 26 years of age.
According to Frink,4 not more than 25 cases of enteroliths had been reported in the