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Alopecia areata - Nail and Distal Digit
See also in: Overview,External and Internal Eye,Hair and Scalp
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Alopecia areata - Nail and Distal Digit

See also in: Overview,External and Internal Eye,Hair and Scalp
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Contributors: Sarah N. Robinson MD, Shari Lipner MD, PhD, Robert Baran MD, Bertrand Richert MD
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Synopsis

Onychodystrophy is commonly associated with alopecia areata (AA), with a prevalence ranging from 7%-66%. Either some or all of the nails may be affected. If all nails are affected, it is commonly referred to as twenty-nail dystrophy. The most common nail abnormalities are pitting and trachyonychia, but longitudinal ridging, onycholysis, red spotted lunulae, and onychomadesis may also be seen.

Patients with more severe AA are more likely to have nail changes. Nail changes may precede, follow, or coincide with the onset of hair loss.

In children, pitting, trachyonychia, and onychomadesis are the most common nail changes. Spotted lunulae are only seen in conjunction with pitting in children.

Codes

ICD10CM:
L63.9 – Alopecia areata, unspecified

SNOMEDCT:
68225006 – Alopecia areata

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed: 04/11/2017
Last Updated: 06/01/2017
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Alopecia areata - Nail and Distal Digit
See also in: Overview,External and Internal Eye,Hair and Scalp
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View all Images (12)
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Alopecia areata : Sparse eyebrows, Eyelash loss, Round areas of alopecia
Clinical image of Alopecia areata
A smooth round patch of nonscarring alopecia on the occipital scalp with early hair regrowth after intralesional steroid injection.
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