Peripheral nerve sheath tumors (PNSTs), particularly schwannomas, are the most common type of nerve tumors. These tumors arise from the protective sheath surrounding peripheral nerves and can ...

“A very small percentage of nerve sheath tumors are malignant," Westbroek says. Doctors only diagnose about 200 cases a year in the U.S. They form in the sheath that protects the peripheral ...

but tumors may also arise in the nerves. This is the case of the malignant peripheral nerve sheath tumor (MPNST), an aggressive sarcoma with a high tendency to metastasise. Sarcomas are a group of ...

The Tony and Grammy Award-winning actor suffered from a rare form of cancer known as metastatic melanotic peripheral nerve ...