Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Kaposi sarcoma on the face, ear, and neck. Kaposi sarcoma causes lesions to grow in the skin, lymph nodes, internal organs, and mucous membranes lining the mouth, nose, and throat. It often Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis Skin Lesions in Melanoma and Kaposi's Sarcoma Journal of Clinical Oncology Melanotic Neuroectodermal Tumor of Infancy: A Case Image Head and Neck Pathology Springer Nature Link