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Cutis. 2003 Apr;71(4):299-302.

Trachyonychia: a case report and review of manifestations, associations, and treatments.

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  • 1Columbia University College of Physicians and Surgeons, New York, New York, USA.


Trachyonychia ("rough nails") is best considered a reaction or morphologic pattern with a variety of clinical presentations and etiologies. It may involve only 1 or as many as 20 nails (20-nail dystrophy). It can be a manifestation of lichen planus, psoriasis, alopecia areata, immunoglobulin A deficiency, atopic dermatitis, and ichthyosis vulgaris. Nail matrix biopsy results and physical examination findings help in establishing the cause of this condition, though often trachyonychia is an isolated finding. When trachyonychia occurs in childhood as a manifestation of lichen planus, it tends to resolve with time. We review a case of trachyonychia, its association, its diagnostic evaluation, and treatment options.

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