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Is focal melanotic lesion potentially malignant? A case report
Astha Chaudhry1, Pulin Saluja2, Muniraju Manjunath3
1Department of Oral Medicine and Radiology, Faculty of Dental Sciences, Shree Guru Gobind Singh Tricentenary University, Gurgaon, India.
Abstract:
Malignant melanoma is a lesion of melanocytes that is commonly observed on cutaneous surfaces. In 35-50% of cases, it originates from a pigmented precursor. Although oral melanocytic pigmentation is very common, melanocytic malignancies such as melanoma, are rare. Oral melanoma may arise from pre-existing pigmentation, but definitive precursor lesions have not been identified. Common sites for oral melanoma are the maxillary gingiva and palate. We report a case of malignant melanoma that transformed from a long-standing, focal, pigmented lesion on the mandibular gingiva and vestibular mucosa, suggesting the potentially malignant nature of focal oral melanotic lesions.
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