title: Malignant change in a verrucous nevus.
abstract: A 41-year-old man developed squamous-cell carcinoma within a verrucous nevus of linear distribution of a long duration. Controversial cases have been reported in the literature. Such malignant change in verrucous nevus is extremely rare.
mesh_terms: D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D006225:Hand / Q000473:pathology; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D009506:Nevus / Q000473:pathology*; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*