Soft tissue sarcoma Neurofibrosarcoma 2011-03-29T11:40:44Z A form of malignant cancer of the connective tissue surrounding nerves. Given its origin and behavior, it is classified as a sarcoma. Malignant peripheral nerve sheath tumor About half the cases are diagnosed in people with neurofibromatosis. SNOMEDCT_US:77418004 Malignant peripheral nerve sheath tumour Neurosarcoma Malignant schwannoma HP:0100697 UMLS:C0751690 UMLS:C0206729 NCIT:C3798 SNOMEDCT_US:404037002 SNOMEDCT_US:19897006