Premalignant melanoses and malignant melanoma of the oral mucosa.
D006801:Humans; D008545:Melanoma / Q000473:pathology*; D008548:Melanosis / Q000473:pathology*; D009062:Mouth Neoplasms / Q000473:pathology*; D009508:Nevus, Pigmented / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology*