A STUDY OF 4 CASES OF DYSOSTOSIS MANDIBULOFACIALIS ARISED FROM A FAMILY

Of 17 persons of a family examined 4 patients demonstrated signs of Dysostosisi mandibulofacialis. Three patients of four were further complicated with palatoschisis, radio-ulnar synostosis and thumb flexion contracture.Two patients, (four ears) received tympanoplasty and were found to have a malformation of the middle ear(mastoid, tympanum and ossicles) without the evidence of inflammation.Domestic and foreign literatures concerning the disease with middle ear malformation and the methods of surgery were referred.