<unk>  is a medical condition caused by mutations in a connexin gene, GJB6 or connexin-30, characterized by scalp hair that is wiry, brittle, and pale, often associated with patchy alopecia.
Clouston's hidrotic ectodermal dysplasia
Sabinas brittle hair syndrome
Daentl Townsend Siegel syndrome
Dunnigan familial partial lipodystrophy
Weismann-Netter–Stuhl syndrome
Simpson–Golabi–Behmel syndrome
Yemenite deaf-blind hypopigmentation syndrome
Coffin–Siris syndrome