Natural course of jaw lesions in patients with familial adenomatosis coli (Gardner's syndrome).

Twenty-three patients suffering from familial adenomatosis coli (FAC) were followed for an average of 7 years (0.11-16.11 years). In 22 patients, jaw lesions including osteomas and/or odontomas were present at the first examination. In 12 patients, some changes occurred; that is, the number and size of the lesions increased. These findings indicate that changes of jaw lesions in FAC patients occur gradually even in adulthood.