Amalgam tattoo in a patient with prior history of melanoma: a case report
Keywords:
Melanoma, melanotic macule, amalgam tattooAbstract
Purpose: Black macules on the oral mucosa may be diagnostic of melanotic macule, melanotic nevus, amalgam tattoo or oral pigmented lesions caused by endodontic sealers, vascular lesions and melanoma. The differential diagnosis of such lesions is important as melanoma may be quite serious and must be treated quickly. A case of black macule on the oral mucosa is reported here, focusing on the importance of the differential diagnosis instituted. Case description: A 56-year-old female patient with a previous history of cutaneous melanoma consulted the Stomatology Service for evaluation of a black macule on the floor of the mouth. The diagnosis was found to be amalgam tattoo, although a radiographic exam had not shown an image compatible with amalgam. Conclusion: The diagnosis of amalgam tattoo can be confirmed by the detection of a metallic fragment in a radiographic exam, a situation that dispenses with the institution of treatment. However, if such a fragment is not detected, a biopsy is necessary to rule out the diagnostic hypothesis of melanocytic neoplasia.Downloads
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