TLDR Alopecia areata incognita causes widespread hair loss without patches and needs a scalp biopsy for diagnosis.
Alopecia areata incognita, first described by Rebora in 1987, was a form of alopecia areata marked by diffuse hair shedding without the typical patchy hair loss. The prevalence of this condition was unknown, and diagnosis typically required a scalp biopsy.
150 citations
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April 2008 in “Journal of The American Academy of Dermatology” Scalp dermoscopy is good for diagnosing a type of hair loss and helps choose the best spots for biopsy.
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January 2008 in “Dermatology” Dermoscopy effectively distinguishes between acute total hair loss and other types of female hair loss.
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January 2002 in “Dermatology” A new type of sudden, complete female hair loss was found, with most patients fully recovering within 6 months without needing steroid treatment.
60 citations
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January 1987 in “Dermatology” Alopecia areata may appear differently depending on the individual's type of hair loss and scalp condition.
April 2019 in “International journal of research in dermatology” A child with rough nails also had hair loss and allergies.
