Lichenification
Pronunciation: ly-ken-ih-fih-KAY-shun
Thickening and hardening of the skin with exaggerated skin markings, resulting from prolonged rubbing or scratching.
Full Definition
Lichenification is a secondary skin change, not a primary lesion, arising from chronic mechanical trauma such as persistent rubbing or scratching. The skin develops a leathery texture, accentuated surface creases, and variable hyperpigmentation. It is commonly seen in atopic dermatitis, chronic eczema, and lichen simplex chronicus. In dermatology documentation and manuscripts, editors must categorise it correctly as a secondary lesion distinct from primary lesion descriptors such as plaques or papules. The term derives from 'lichen' (the crustose organism) due to the resemblance of affected skin. It is consistently lower case in running text.
Usage
Usage note: Lichenification is a secondary skin change and must not be listed among primary lesion findings. Do not confuse with the named conditions 'lichen planus' or 'lichen sclerosus.'
In Context
- "Chronic scratching had produced marked lichenification of the antecubital fossae in this patient with atopic dermatitis." — Dermatology clinical assessment
- "The author listed 'lichenification' as a primary lesion; the editor reclassified it as a secondary skin change." — Manuscript correction note