Let's Talk Melanin Dermalogica ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production Having melena in stool makes it Melenic Stool NOT Melanotic stool MELENIC MELANOTIC #MedTwitter #IMbound #EMbound #MedEd #GITwitter Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram Melanin: Its Role and Impact on Skin Pigmentation Novology Novology India SKCIN Melanoma begins in melanocytes the cells that produce the pigment melanin that colours the skin, hair and eyes, and tans the skin when it is exposed to UV radiation