To the Editor.—
We have had the opportunity to observe four patients with baldness of hairy skin in the center of which white hair of similar length to surrounding hair persisted. It was not, therefore, a regrowth of white hair on an old lesion of alopecia as the baldness had existed for less than three months in each case.
Report of Cases.—Case 1.—
A 55-year-old woman with long, graying hair (30 to 40 cm in length) two months ago noted a round patch (3 cm in diameter) of almost complete alopecia in the occipital area. Dermatological examination established the diagnosis of alopecia areata and revealed that white hair remains unchanged on the bald patch.
Ortonne J, Jeune R. Hair Color and Alopecia Areata. Arch Dermatol. 1978;114(11):1716-1717. doi:10.1001/archderm.1978.01640230086031