The 5 Ps of lichen planus
5 Ps
Describes the classic lesion and helps pick it from other papulosquamous disorders.
Does not include Wickham's striae, nail or mucosal changes.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.
5 Ps. It helps you recall: The 5 Ps of lichen planus.
Violaceous colour
Angular shape
Itchy
Purple: Violaceous colour; Polygonal: Angular shape; Pruritic: Itchy; Planar: Flat-topped; Papules: Primary lesion, which may coalesce to plaques.
It belongs to Papulosquamous disorders in Dermatology.
Does not include Wickham's striae, nail or mucosal changes.
Describes the classic lesion and helps pick it from other papulosquamous disorders.
Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Dermatology question about Papulosquamous disorders.
It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.