A Black Spot on the Upper Gum for Many Years: Melanotic Macule Springer Nature Link Lingual melanotic macule the first case report in an adult patient* Anais Brasileiros de Dermatologia Oral Melanotic Macule: Symptoms and Treatment Skinsight Metastatic oral malignant melanoma transformed from pre existing pigmented lesions in mandibular gingiva: Report of an unusual case ScienceDirect Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com