Frontiers Cervical Malignant Melanotic Nerve Sheath Tumor with retained PRKAR1A expression and a clinically benign course: a case report and review of the literature Malignant Peripheral Nerve Sheath Tumor grows in the soft tissues such as muscle, fat, tendons, ligaments, lymph and blood vessels, nerves, and other tissue that connects and supports the body. It also Pathology Outlines Malignant melanotic nerve sheath tumor Malignant Melanotic Nerve Sheath Tumor of the Neck: A Case Report Applied Radiation Oncology