Malignant Melanotic Nerve Sheath Tumor of the Neck: A Case Report Applied Radiation Oncology We are deeply saddened by the loss of Broadway star Gavin Creel. He passed away from Malignant melanotic nerve sheath tumor (MMNST) which is a rare form of Malignant peripheral nerve sheath Malignant Melanotic Nerve Sheath Tumor of the Neck: A Case Report Applied Radiation Oncology Improving our Understanding of the Management and Pathogenesis of Rare and Neglected Tumors of the Central and Peripheral Nervous System Frontiers Research Topic Malignant peripheral nerve sheath tumor of the maxila ScienceDirect