Malignant transformation of hypertrophic lichen planus.
D000328:Adult; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000473:pathology; D002471:Cell Transformation, Neoplastic; D006801:Humans; D006984:Hypertrophy; D007866:Leg / Q000473:pathology; D008010:Lichen Planus / Q000150:complications* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000209:etiology* / Q000473:pathology