title: Controversies in dermatopathology.
abstract: Five controversial topics in dermatopathology are discussed. Penile lesions with atypical epidermal cells in young men, neoplasms with intraepithelial cellular nests, neoplasms with a trichilemmal outer layer, neoplasms with eddies of squamous cells, and the origin of seborrheic keratoses are analyzed to suggest a means of clinical recognition and understanding.
mesh_terms: D000328:Adult; D001913:Bowen's Disease / Q000473:pathology; D002291:Carcinoma, Papillary / Q000473:pathology; D005260:Female; D006222:Hamartoma / Q000473:pathology; D006801:Humans; D007642:Keratosis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D010409:Penile Diseases / Q000473:pathology; D010412:Penile Neoplasms / Q000473:pathology; D012871:Skin Diseases / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology; D013544:Sweat Gland Neoplasms / Q000473:pathology; D013577:Syndrome; D014860:Warts / Q000473:pathology