Study of 31 affected individuals among six generations of a large family indicates that this familial focal facial dermal dysplasia has an autosomal dominant inheritance. The affected subjects had insignificant to major pigmented atrophic lesions on the temporal areas of the face, and to a lesser degree, linear radiatory impressions on the forehead, clefting of the chin, and hairless depressions on the chin. Six subjects had only unilateral lesions. There is an apparent associated history of mental disturbances and abdominal carcinoma.
McGeoch AH, Reed WB. Familial Focal Facial Dermal Dysplasia. Arch Dermatol. 1973;107(4):591-595. doi:10.1001/archderm.1973.01620190063015