Benign solitary pigmented lesions of the oral mucosa.
D003723:Dental Amalgam / Q000009:adverse effects; D003937:Diagnosis, Differential; D006801:Humans; D009059:Mouth Diseases / Q000473:pathology; D009061:Mouth Mucosa / Q000473:pathology*; D009062:Mouth Neoplasms / Q000473:pathology; D009508:Nevus, Pigmented / Q000473:pathology; D010859:Pigmentation Disorders / Q000473:pathology*
D003723:Dental Amalgam