<unk>  is an autosomal dominant condition characterized by scalp hair that is sparse or absent at birth, with variable coarse, wiry hair regrowth in childhood, and potential loss again at puberty.
Marie Unna hereditary hypotrichosis
Sabinas brittle hair syndrome
Fox–Fordyce disease
McKittrick-Wheelock syndrome
Greig cephalopolysyndactyly syndrome
Cronkhite–Canada syndrome
Smith Martin Dodd syndrome
Fabry disease