Lichen planus: Erythema and white epithelial thickening of right lateral border of tongue.

Lichen planus: Large painful ulcer of left lateral border of tongue.

Lichen planus: Erythema and white epithelial thickening of left lateral border of tongue.

Lichen planus: Large painful ulcer of dorsum of tongue.

Lichen planus: Ulcers of the maxillary anterior gingiva.

Lichen planus: White striations and ulcer on left buccal mucosa.

Lichen planus: Large ulcer surrounded by white striations on left buccal mucosa.

Lichen planus: Erythema and ulcers of maxillary gingiva.