NCIt synonyms : Skin Squamous Cell Papilloma; Hyperkeratotic Papilloma of the Skin; Parakeratotic Papilloma of the Skin; Dyskeratotic Papilloma of Skin; Squamous Cell Papilloma of the Skin; Hyperkeratotic Skin Papilloma; Dyskeratotic Papilloma of the Skin; Parakeratotic Papilloma of Skin; Hyperkeratotic Papilloma of Skin; Parakeratotic Skin Papilloma; Squamous Cell Papilloma of Skin; Squamous Cell Skin Papilloma;