neurofibroma

A moderately firm, benign, encapsulated tumor resulting from proliferation of Schwann cells in a disorderly pattern that includes portions of nerve fibers; in neurofibromatosis, neurofibromas are multiple. SYN: fibroneuroma.
- plexiform n. a type of n., representing an anomaly rather than a true neoplasm, in which the proliferation of Schwann cells occurs from the inner aspect of the nerve sheath, thereby resulting in an irregularly thickened, distorted, tortuous structure; in some instances, the process extends along the course of the nerve and may eventually involve the spinal roots and the spinal cord; seen most frequently in neurofibromatosis. SYN: fibrillary neuroma, plexiform neuroma.
- storiform n. SYN: pigmented dermatofibrosarcoma protuberans.

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neu·ro·fi·bro·ma -fī-'brō-mə n, pl -mas also -ma·ta -mət-ə a fibroma composed of nervous and connective tissue and produced by proliferation of Schwann cells

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n.
a benign tumour growing from the fibrous coverings of a peripheral nerve: it is usually symptomless. When it develops from the sheath of a nerve root, it causes pain and may compress the spinal cord.

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neu·ro·fi·bro·ma (noor″o-fi-broґmə) [neuro- + fibroma] a usually benign tumor of peripheral nerves caused by abnormal proliferation of Schwann cells; called also fibroneuroma. Cf. neurilemoma.

Medical dictionary. 2011.

Look at other dictionaries:

  • Neurofibroma — Classification and external resources Histopathologic image of cutaneous neurofibroma obtained by biopsy ICD 10 D36.1 (ILDS D36.160) …   Wikipedia

  • neurofibroma — m. neurol. Proliferación tumoral del tejido conjuntivo de los nervios formada por células del perineurio y endoneurio. Medical Dictionary. 2011. neurofibroma …   Diccionario médico

  • neurofibroma — [noor΄ōfī brō′mə] n. pl. neurofibromas, neurofibromata [no͞o΄rō fī brō′mə tə] a tumor, usually benign, that consists of nerve fibers and connective tissue, caused by an abnormal proliferation of Schwann cells …   English World dictionary

  • neurofibroma — noun Date: circa 1892 a fibroma composed of nervous and connective tissue and produced by proliferation of Schwann cells …   New Collegiate Dictionary

  • neurofibroma — /noor oh fuy broh meuh, nyoor /, n., pl. neurofibromas, neurofibromata / meuh teuh/. Pathol. a benign neoplasm composed of the fibrous elements of a nerve. [1890 95; NEURO + FIBROMA] * * * …   Universalium

  • neurofibroma — noun A benign tumor composed of Schwann cells …   Wiktionary

  • neurofibroma — n. type of tumorous growth on a nerve cell which is usually benign (Pathology) …   English contemporary dictionary

  • neurofibroma — [ˌnjʊərə(ʊ)fʌɪ brəʊmə] noun (plural neurofibromas or neurofibromata mətə) Medicine a tumour formed on a nerve cell sheath, frequently symptomless but occasionally malignant …   English new terms dictionary

  • neurofibroma — neu·ro·fibroma …   English syllables

  • neurofibroma — n. a benign tumour growing from the fibrous coverings of a peripheral nerve: it arises from Schwann cells, lacks a capsule (therefore it may incorporate nerve fibres), and is usually symptomless. When it develops from the sheath of a nerve root,… …   The new mediacal dictionary

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