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August 1969

Acquired Progressive Kinking of the Hair: Structural Changes and Growth Dynamics of Affected Hairs

Author Affiliations

Vancouver, BC, Canada

From the Department of Medicine, Division of Dermatology, The University of British Columbia Medical School, Vancouver, BC, Canada.

Arch Dermatol. 1969;100(2):191-195. doi:10.1001/archderm.1969.01610260067012

A case of acquired progressive kinking of the hair is described. There were abnormalities of both hair structure and growth. The structural change was an occasional kink or half-twist of the shaft, and the growth change, a shorter anagen phase with catagen apparently occurring as a random event such that in a population of affected hairs about a third entered catagen for every 1.5 cm increment of hair growth.