Melena, Causes, Signs and Symptoms, Diagnosis and Treatment YouTube This lovely patient was thrilled with her beautiful result after laser treatment of oral melanotic macules. I share this case to educate: laser treatment requires accurate diagnosis, an understanding of the differential Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram melan o Master Medical Terms 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 Melanin Factories: The Science behind Skin Color Glutone