Woolly Hair Nevus

A Case of Woolly Hair Naevus

“…Born (1957) and Post (1958) also reported cases which resembled those originally described by Wise. 512 In Post's patient, a 7-year-old boy, the woolly areas were accompanied by linear verrucous naevi on the face, neck and arm.…”

“…Microscopic examination of the hairs will decide the diagnosis as other defects have a characteristic appearance. Post (1958) suggested that there are three types of woolly hair naevus: (1) a type without any visible changes of the glabrous skin or scalp, (2) a type accompanied by linear naevi of the skin and (3) a type acquired in adult life in which the hair of the scalp assumes the characteristics of the pubic hair. While accepting the first two groups, the case under discussion being an example of the first, the writer feels that the third group should not* be classified as a woolly hair naevus but should be classified as acquired progressive kinking of the hair as described by Wise and Sulzberger (1932).…”

Woolly‐Hair Nevus: A Case Report and Study by Scanning Electron Microscopy

“…Woolly-hair nevus was first described by Wise (2) in 1927 in two unrelated 5-year-old girls who had welldemarcaled patches of thin, curly hair with a "woolly feel." Only 15 cases of woolly-hair nevus have been described in the world's literature (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13).…”

Woolly Hair Nevus Type I

“…6 Post divided the woolly hair nevus into three categories: a) Type 1: with no associated scalp disorder or hair less skin, b) Type 2: with associated linear verrucous nevus, c) Type 3: acquired, in young adults with short, dark, kinky hair, which has been termed acquired progressive kinking of scalp hair. 7 Clinically, the woolly hair nevus is characterized by its presence from birth or within first two years of life with one or more well circumscribed areas of the scalp of curly, kinky, shiny hair, of woolly texture, somewhat thinner and lighter in color from the remaining hair. The hair is difficult to comb and often not fragile, except when associated with trichorrhexis nodosa.…”