neurilemoma

SYN: schwannoma. [neurilemma + G. -oma, tumor]
- acoustic n. schwannoma arising from cranial nerve VIII.
- Antoni type A n. relatively solid or compact arrangement of neoplastic tissue that consists of Schwann cells arranged in twisting bundles and associated with delicate reticulin fibers; the nuclei of the Schwann cells are frequently grouped in parallel rows (so-called palisades), and the nuclei and fibers sometimes form exaggerated tactile corpuscles, called Verocay bodies.
- Antoni type B n. relatively soft or loose arrangement of neoplastic tissue that consists of Schwann cells in a haphazard or nondescript type of arrangement among reticulin fibers and tiny cystlike foci; fat-laden macrophages may be observed in some of the larger neoplasms.

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neu·ri·lem·o·ma (noor″ĭ-lem-oґmə) a tumor of a neurilemma, the most common type of neurogenic tumor, usually isolated and encapsulated. Most are benign but occasionally they become malignant. Cf. neurofibroma. Called also schwannoma.

Medical dictionary. 2011.

Look at other dictionaries:

  • neurilemoma — tumor originado en el neurilema; schwannoma imagen TC CIE 10 Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. neurilemoma Véase schwannoma. Diccionario Mosby Medicina, Enfermería y Cienc …   Diccionario médico

  • neurilemoma — neu·ri·le·mo·ma …   English syllables

  • neurilemoma — noun tumor of the fibrous covering of a peripheral nerve • Syn: ↑neurofibroma • Hypernyms: ↑tumor, ↑tumour, ↑neoplasm …   Useful english dictionary

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  • schwannoma — A benign, encapsulated neoplasm in which the fundamental component is structurally identical to a syncytium of Schwann cells; the neoplastic cells proliferate within the endoneurium, and the perineurium forms the capsule. The …   Medical dictionary

  • Neurolemma — Diagram of longitudinal sections of medullated nerve fibers. Transverse sections of medull …   Wikipedia

  • Antoni — Nils R., Swedish neurologist, 1887–1968. See A. type A neurilemoma, A. type B neurilemoma …   Medical dictionary

  • neuroma — General term for any neoplasm derived from cells of the nervous system; on the basis of newer knowledge pertaining to cytologic and histologic characteristics, a variety of neoplasms, formerly placed in the general category of n., may now be… …   Medical dictionary

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