Familial hemifacial microsomia.

Hemifacial microsomia, a relatively distinct clinical form in the Facio-Auriculo-Vertebral Spectrum is generally thought to be a sporadic event, although infrequent familial occurrences have been reported. In this communication, we describe a family with three males and two females in two successive generations affected with hemifacial microsomia. The pedigree is most compatible with autosomal dominant inheritance, although X-linked dominant or multifactorial inheritance cannot be excluded.