neurinoma

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neurilemoma

 [noor″ĭ-lĕ-mo´mah]
a tumor of a neurilemma (peripheral nerve sheath); called also schwannoma and neurinoma.

neu·ri·no·ma

(nū'ri-nō'mă),
Obsolete term for schwannoma.

neurinoma

/neu·ri·no·ma/ (-no´mah) neurilemoma.

neurinoma

[noo͡r′inō′mə] pl. neurinomas, neurinomata
Etymology: Gk, neuron + oma, tumor
1 a tumor of the nerve sheath. It is usually benign but may undergo malignant change. A kind of neurinoma is acoustic neurinoma. See also schwannoma.
2 a neuroma.

neu·ri·no·ma

(nūr'i-nō'mă)
Obsolete term for schwannoma

neu·ri·no·ma

(nūr'i-nō'mă)
Obsolete term for schwannoma

neurinoma (nyoo´rinō´mə),

neurinoma

neurilemmoma.

Patient discussion about neurinoma

Q. Anybody familiar with schwannoma?

A. A schwannoma is a kind of tumor originating from the Schwann cells. The insulating myelin sheath which covers peripheral nerves is produced by the Schwann cells. Hence, one kind of tumor originating from the Schwann cells is called a schwannoma.

Schwannomas are very homogeneous tumors consisting only of Schwann cells. The tumor cells always stay on the outside of the nerve, but the tumor itself may either push the nerve aside and/or up against a bony structure (thereby possibly causing damage). Schwannomas are relatively slow growing. For reasons not yet understood, schwannomas are mostly benign and less than 1% become malignant (degenerate into cancer). This form of cancer is known as malignant peripheral nerve sheath tumour or malignant Schwannoma or neurofibrosarcoma.

Schwannomas can arise from a genetic disorder called neurofibromatosis.

More discussions about neurinoma
References in periodicals archive ?
Early diagnosis of an acoustic neurinoma is key to preventing its serious consequences.
If an acoustic neurinoma is surgically removed when it is still very small, hearing may be preserved and accompanying symptoms may go away.
Because NF2 patients usually have multiple tumors, the surgical procedure is more complicated than the removal of an unilateral acoustic neurinoma.
Scientists believe that both types of acoustic neurinoma form following a loss of the function of a gene on chromosome 22.
Neurinoma of the facial nerve simulating a parotid tumor.
El acceso presigmoideo combinado supra e infratentorial tambien ha sido utilizado para la reseccion de meningeomas petroclivales, asi como de neurinomas del foramen yugular y glomus yugulares.
Este acceso se recomienda para abordar las lesiones paraselares y de la fosa interpeduncular; incluyendo meningeomas del tercio medio del ala del esfenoides, meningeomas petroclivales, neurinomas del trigemino y aneurismas de la punta de la arteria basilar [9].
La frecuencia relativa de los principales tumores del SNC se distribuye de la siguiente forma: a) glioma (50%); b) meningioma (20%); c) adenoma hipofisario (10%); d) neurinoma (6%); e) craneofaringioma (3%); f) meduloblastoma, y h) tumores primarios del SNC restantes (8%) (3).