sheath

Malignant peripheral nerve sheath tumours (MPNSTs) is rare. It is a type of peripheral nerve sheath tumour that is cancerous (malignant). Most peripheral nerve sheath tumours are not cancerous (benign). A tumour is a lump or growth in the body. One type of non cancerous peripheral nerve sheath tumour is called a schwannoma. What is a malignant peripheral nerve sheath tumour? Malignant peripheral nerve sheath tumours are a type of peripheral nerve sheath tumour. These cancers begin in the layer (nerve sheath) that cover the peripheral nerves. Peripheral nerves send messages between the brain and spinal cord and the rest