Trichotillomania Associated With The Friar Tuck Sign And Nail-Biting

February 1991 in “ PubMed ”

L Dimino-Emme, Charles Camisa

trichotillomania traction alopecia alopecia areata androgenetic alopecia tinea capitis onychophagia hair pulling nail-biting

TLDR Trichotillomania can be identified by a "Friar Tuck sign" and nail-biting.

The document discussed trichotillomania, a form of traction alopecia caused by compulsive hair pulling, which could resemble other types of hair loss such as alopecia areata and androgenetic alopecia. It emphasized the importance of distinguishing trichotillomania from other alopecias due to differing treatments. The study presented three cases exhibiting the "Friar Tuck sign," a tonsure pattern of hair loss, and onychophagia (nail-biting) as identifying features of this condition.

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