Oral Melanoma: A Rare but Aggressive Oral Cancer Oral melanoma is a rare and highly aggressive malignant tumor that develops from melanocytes within the oral mucosa. It most commonly affects the Melanotic Neuroectodermal Tumour of Infancy Head and Neck Pathology Springer Nature Link Melanotic Neuroectodermal Tumor of Infancy: A Rare Case Report and Review Melanotic Neuroectodermal Tumor of Infancy Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non psammomatous type: Two case reports