10 Common Mistakes to Avoid for Lip Pigmentation and How to Fix Them An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic A Rare Case of Clear Cell Sarcoma of the Tongue: A Case Report Cureus Melanoma Treatment & Pharmacologic Management View of Malignant melanotic nerve sheath tumor with PRKAR1A, KMT2C and GNAQ mutations Free Neuropathology