Nerve sheath tumor
Classification and external resources
ICD-O:	9540-9570[1]
MeSH	D018317

A nerve sheath tumor is a type of tumor of the nervous system (nervous system neoplasm) which is made up primarily of the myelin surrounding nerves.

A peripheral nerve sheath tumor (PNST) is a nerve sheath tumor in the peripheral nervous system.

Benign peripheral nerve sheath tumors include schwannomas and neurofibromas.^[2]

A malignant peripheral nerve sheath tumor (MPNST) is a cancerous peripheral nerve sheath tumor.

[edit] References

1. ^ http://ccrcal.org/PDF/CNSICD-O-3Codes.pdf
2. ^ "Spinal Cord Tumors -- Nerve Sheath Tumors (Schwannomas and Neurofibromas)". http://www.mayoclinic.org/spinal-cord-tumors/nervesheath.html. Retrieved 2007-08-06. 

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v • d • e Nervous tissue tumors/nervous system neoplasm/Neuroectodermal tumor (ICD-O 9350-9589) (C70-C72/D32-D33, 191-192/225) Endocrine/ sellar (9350-9379) sellar: Craniopharyngioma · Pituicytoma other: Pinealoma CNS (9380-9539) Neuroepithelial (brain tumors, spinal tumors) Glioma Astrocyte Astrocytoma (Pilocytic astrocytoma, Glioblastoma multiforme) Oligodendrocyte Oligodendroglioma Ependyma Ependymoma · Subependymoma Choroid plexus Choroid plexus tumor (Choroid plexus papilloma, Choroid plexus carcinoma) Multiple/unknown Oligoastrocytoma · Gliomatosis cerebri · Gliosarcoma Mature neuron Ganglioneuroma: Ganglioglioma · Retinoblastoma · Neurocytoma · Dysembryoplastic neuroepithelial tumour · Lhermitte-Duclos disease PNET Neuroblastoma (Esthesioneuroblastoma, Ganglioneuroblastoma) · Medulloblastoma · Atypical teratoid rhabdoid tumor Meningiomas (meninges) Meningioma Hematopoietic Primary central nervous system lymphoma PNS: NST (9540-9579) cranial and paraspinal nerves: Neurofibroma (Neurofibrosarcoma, Neurofibromatosis) · Neurilemmoma/Schwannoma (Acoustic neuroma) · Malignant peripheral nerve sheath tumor note: not all brain tumors are of nervous tissue, and not all nervous tissue tumors are in the brain central nervous system navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc peripheral nervous system navs: anat/histo/physio/dev, noncongen PNS somatic/autonomic/congen/neoplasia, symptoms+signs/eponymous, proc