Trachyonychia

Excessive longitudinal ridging that gives the surface of the nail plate a rough appearance. It results from multiple foci of defective keratinization of the proximal nail matrix. The most common histopathologic findings of trachyonychia are spongiosis and exocytosis of inflammatory cells in the nail epithelia1. Although idiopathic trachyonychia may be much more common than reported, it may present with various associated skin or mucosal diseases including alopecia areata, lichen planus, psoriasis, and eczema. Trachyonychia predominantly occurs in children, although it can affect people of all ages. Trachyonychia can improve spontaneously but may have a chronic course exceeding 6 years and result in cosmetic handicaps.

http://purl.obolibrary.org/obo/HP_0030804

The most common histopathologic findings of trachyonychia are spongiosis and exocytosis of inflammatory cells in the nail epithelia1. Although idiopathic trachyonychia may be much more common than reported, it may present with various associated skin or mucosal diseases including alopecia areata, lichen planus, psoriasis, and eczema. Trachyonychia predominantly occurs in children, although it can affect people of all ages. Trachyonychia can improve spontaneously but may have a chronic course exceeding 6 years and result in cosmetic handicaps.

SNOMEDCT_US:69192004

UMLS:C0546956

Excessive longitudinal ridging that gives the surface of the nail plate a rough appearance. It results from multiple foci of defective keratinization of the proximal nail matrix.

human_phenotype

HP:0030804

Trachyonychia

HP:0030804

Trachyonychia

http://purl.obolibrary.org/obo/HP_0002164

http://purl.obolibrary.org/obo/HP_0002164