title: Bilateral verrucous carcinoma of the feet.
abstract: A 51-year-old woman had had bilateral verrucous carcinoma of the feet for ten years. The tumors had been treated many times as extensive verruca vulgaris before a biopsy was performed and the true neoplastic nature of the lesion recognized. This case illustrates the necessity of performing biopsies on atypical or frequently unresponsive verrucous tumors.
mesh_terms: D001706:Biopsy; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005534:Foot Diseases / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014860:Warts / Q000175:diagnosis