|
| Subtypes | Most common sites of involvement |
|
| CLP |
| Actinic | Sun-exposed areas such as face, V-chest, hands |
| Annular | Male genitalia (penis, scrotum), axilla, groin folds |
| Atrophic | All parts of body especially lower extremetities |
| Erosive | Soles of feet |
| Follicular | Scalp |
| Guttate | Trunk |
| Hypertrophic | Anterior leg, ankles, and interphalangeal joints |
| Linear | Leg-excoriated area |
| Papular | Flexor surfaces (the main initial presentation) |
| Bullous | Feet |
| Pigmentosus | Sun exposed areas such as face, V-chest, hands |
| Pigmentosus-inversus | Intertriginous and flexural areas |
| Nail involvement | Fingernails and toenails |
| Palmoplantar involvement | (1) Malleoli
(2) Soles (internal plantar arch) |
| Lichen planopilaris | (1) Vertex of scalp (classic type)
(2) Frontal of scalp (FFA type) |
|
| Mucosal LP |
| Oral | |
| Reticular | (1) Buccal mucosa and mucobuccal folds
(2) Lateral and dorsal tongue
(3) Gingiva and lips |
| Atrophic | Attached gingiva |
| Hypertrophic | Buccal mucosa |
| Erosive | (1) Lateral and ventral portions of tongue
(2) Buccal mucosa |
| Bullous | Posterior and inferior areas of buccal mucosa |
| Plaque-like | Dorsum of the tongue and buccal mucosa |
| Vulvovaginal | |
| All subtypes | Vaginal introitus, clitoris, clitoral hood, labia minora, and majora, vagina |
| Esophageal | (1) Proximal esophagus
(2) Proximal and distal esophagus
(3) Distal esophagus, strong possibility of concomitant mucosal involvement (80%) |
|
