A para aortic malignant melanotic nerve sheath tumor mimicking a gastrointestinal stromal tumor: a rare case report and review of literature BMC Surgery Springer Nature Link Pathology Outlines Malignant melanotic nerve sheath tumor Recurrent metastatic malignant peripheral nerve sheath tumor associated with neurofibromatosis I: a rare case with atypical immunohistochemistry Anais Brasileiros de Dermatologia Soft Tissue Sarcomas 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