Exploring a Case of Potential Facial Lichen Planopilaris or Follicular Variant of Lichen Planus Pigmentosus
- Author:
Kyung-Ju LEE
1
;
Jun Hyeong JEONG
;
Jae Won LEE
;
Hyun-Tae SHIN
;
Ji Won BYUN
;
Gwang Seong CHOI
;
Jeonghyun SHIN
Author Information
1. Department of Dermatology, Inha University School of Medicine, Incheon, Korea
- Publication Type:Case Report
- From:Korean Journal of Dermatology
2024;62(10):560-564
- CountryRepublic of Korea
- Language:English
-
Abstract:
Lichen planopilaris (LPP) is a follicular variant of lichen planus, typically occurring on the scalp. A 61-year-old man presented with asymptomatic pigmented atrophic patches on his chin. Dermoscopy showed reticular hyperpigmentation and perifollicular hyperkeratosis. A punch biopsy revealed follicular plugging, perifollicular lymphocytic infiltration, vacuolar degeneration of the follicular basal cell layer, mild interface dermatitis, and melanophages. Direct immunofluorescence testing was negative, leading to a diagnosis of facial LPP. Some have classified similar cases as facial LPP, while others have reported them as a follicular variant of lichen planus pigmentosus. This report explores the question of whether these cases should be classified as facial LPP, or as a follicular variant of lichen planus pigmentosus, or as conditions encompassed within the spectrum of these two disorders, with a comprehensive literature review.
