Ectodermal dysplasia manifested as:: (A) Hypohidrosis., (B) Hypotrichosis., (C) Hypodontia., (D) All of the above.
Answer is D. Ectodermal dysplasia is characterized by congenital dysplasia of ectodermal structures, manifested as hypohidrosis (partial or complete absence of sweat glands) hypotrichosis and hypodontia or partial anodontia.