Melanosis coli: a contrast effect or an oncogenic effect? A large scale retrospective cohort study International Journal of Colorectal Disease Springer Nature Link Melanotic Neuroectodermal Tumor of Infancy MD Searchlight 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 Melanosis coli Wikipedia Oral Mucosal Melanosis IntechOpen