Update on Peripheral Nervous System Tumors: Lesions with Epithelioid and Melanotic Features ScienceDirect Malignant Peripheral Nerve Sheath Tumor of the Thigh Invading the Superficial Femoral Artery, with Necrotic Lung Metastases as Presenting Symptoms Malignant Peripheral Nerve Sheath Tumors: Causes, Symptoms Deep genomic analysis of malignant peripheral nerve sheath tumor cell lines challenges current malignant peripheral nerve sheath tumor diagnosis ScienceDirect