Gardner's syndrome: a report of two Western Australian families.

Patients from two families are reported who exhibited features of Gardner's syndrome: familial polyposis coli; epidermoid cysts; and osteomata. The difficulty in defining this syndrome, its clinical features and suggested management are discussed. Follow up has been difficult in one family because of the late age at which lesions developed, and because family members have moved interstate. The premalignant potential of Gardner's syndrome is emphasized.