Dermpath Made Simple Neoplastic: Oral Tumours How long does Melanotan Nasal Spray Take to Work? Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com # ** 2. Gingival Melanoma** Melanomas may arise from the mucosal epithelial lining of the oral cavity and gastrointestinal tract. The patient was referred to the oncology clinic