Nerve sheath tumor

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.

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. 



Wikimedia Foundation. 2010.

Look at other dictionaries:

  • nerve sheath tumor — a tumor of the myelin sheath, such as an acoustic neuroma or a schwannoma; called also sheath t …   Medical dictionary

  • Malignant peripheral nerve sheath tumor — Classification and external resources Micrograph of malignant peripheral nerve sheath tumour with the typical herringbone pattern. H E stain …   Wikipedia

  • malignant peripheral nerve sheath tumor — MPNST. A type of soft tissue sarcoma that develops in cells that form a protective sheath (covering) around peripheral nerves, which are nerves that are outside of the central nervous system (brain and spinal cord). Also called MPNST …   English dictionary of cancer terms

  • malignant peripheral nerve sheath tumor — a malignant type of schwannoma whose appearance is superficially similar to that of a fibrosarcoma; it may occur in association with neurofibromatosis that is undergoing malignant transformation. Called also malignant schwannoma,… …   Medical dictionary

  • sheath tumor — nerve sheath t …   Medical dictionary

  • Optic nerve sheath meningioma — Radiation treatment of ONSM MRI of a patient with ONSM …   Wikipedia

  • tumor — 1. Any swelling or tumefaction. 2. SYN: neoplasm. 3. One of the four signs of inflammation (t., calor, dolor, rubor) enunciated by Celsus. [L. t., a swelling] acinar cell t. a …   Medical dictionary

  • Malignant triton tumor — (MTT) is a relatively rare, aggressive tumor made up of both malignant schwannoma cells and malignant rhabdomyoblasts. It s classified as a malignant peripheral nerve sheath tumor with rhabdomyosarcomatous differentiation. The unusual name triton …   Wikipedia

  • Brain tumor — Classification and external resources Brain metastasis in the right cerebral hemisphere from lung cancer shown on T1 weighted magnetic resonance imaging with intravenous contrast …   Wikipedia

  • Optic nerve glioma — Classification and external resources Magnetic resonance image of a large retrobulbar optic nerve tumor causing massive proptosis. ICD 10 C …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.