median nail dystrophy

(redirected from median canaliform dystrophy of Heller)

median nail dystrophy

A nail disorder characterised by a paramedian canal or split in the nail plate of one or more nails. Small cracks or fissures extend laterally from the central canal or split toward the nail edge, resulting in an appearance likened to that of an inverted Christmas tree. The condition is usually symmetrical and most often affects the thumbs.

Aetiology
Usually idiopathic; some cases have been linked to trauma, the use of PDAs (personal digital assistants) and isotretinoin.

Management
Tacronimus.
References in periodicals archive ?
Median canaliform dystrophy of Heller (dystrophia unguis median acanaliformis, nevus striatus unguis), as the name suggests, is a dystrophic condition of the nail in which longitudinal splitting occurs.