Classification and external resources
ICD-O: 9570/0
MeSH D009463

A neuroma (pronounced /njuːˈroʊmə/) is a growth or tumor of nerve tissue.[1] (Neuro- is from the Greek for nerve, whereas the suffix -oma denotes swelling.) Just as the Latin word for swelling (tumor) is now restricted to neoplasias, the equivalent Greek suffix -oma has shared in that fate. Thus, the typical modern usage of neuroma is for nerve tumors. However, many of the older, more general uses persist.[2]

Neoplastic neuromas

Neoplastic neuromas are tumors of nerves, although the term can also be applied more generally for a tumor of nervous system tissue. They can be derived from a variety of the cell types that constitute nervous tissue, including glial cells and neurons, and can be either benign or malignant (i.e. cancerous). Many mistakenly assume that the Greek stem neur in neuroma refers to neurons rather than to nerves. This is not the case, and in fact, most instances of the word refer to non-neuronal tissue.

  • Neurinoma (Neurilemmoma) - a benign slow growing tumor of the neurolemma (myelin sheath) of a nerve fibre.
  • Ganglioneuroma could be considered a type of neuroma, though it is not a nerve sheath tumor.

Non-neoplastic neuromas

In its most general sense, neuroma can be applied to any swelling of a nerve. Thus, there are a variety of usages that don't refer to neoplastic tumors.

  • Traumatic neuroma follows different forms of nerve injury (often as a result of surgery). They occur at the end of injured nerve fibres as a form of ineffective, unregulated nerve regeneration; it occurs most commonly near a scar, either superficially (skin, subcutaneous fat) or deep (e.g., after a cholecystectomy). They are often very painful. It is also known as "pseudoneuroma".
  • Morton's neuroma (a mononeuropathy of the foot) is another example of the older, more general usage of neuroma. Some prefer the term "Morton's metatarsalgia", thus avoiding the term neuroma and its association with tumors.[3]


  1. ^ "neuroma" at Dorland's Medical Dictionary
  2. ^ Neuroma at eMedicine Dictionary
  3. ^ -664076278

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Look at other dictionaries:

  • neuroma — m. anat. patol. Proliferación de tumores constituidos básicamente por células nerviosas en un tejido conjuntivo fibroso. ⊆ Tumor que se forma a partir de un nervio. Medical Dictionary. 2011. neuroma …   Diccionario médico

  • Neuroma — Neu*ro ma, n. [NL. See {Neuro }, and { oma}.] (Med.) A tumor developed on, or connected with, a nerve, esp. one consisting of new formed nerve fibers. [1913 Webster] …   The Collaborative International Dictionary of English

  • neuroma — |ô| s. m. Tumor formado por substância nervosa, na espessura do tecido dos nervos …   Dicionário da Língua Portuguesa

  • neuroma — (De neuro y ma). m. Med. Tumor más o menos voluminoso, circunscrito y acompañado de intenso dolor, que se forma en el espesor del tejido de los nervios …   Diccionario de la lengua española

  • neuroma — [no͞o rō′mə, nyo͞orō′mə] n. pl. neuromas or neuromata [no͞o rō′mə tə, nyo͞o rō′mə tə] [ModL: see NEURO & OMA] a tumor derived from nervous tissue, consisting of nerve cells and fibers …   English World 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

  • neuroma — (Del gr. neuron, nervio + oma, tumor.) ► sustantivo masculino MEDICINA Tumor doloroso que se forma en el espesor del tejido nervioso. * * * neuroma (de «neuro » y « oma») m. Med. *Tumor que se forma en el tejido de los nervios. * * * neuroma. (De …   Enciclopedia Universal

  • neuroma — neu·rò·ma s.m. TS med. 1. → neuroma da amputazione 2. tumore costituito da cellule nervose, spec. del sistema simpatico {{line}} {{/line}} DATA: 1834. ETIMO: der. di neuro con oma. POLIREMATICHE: neuroma da amputazione: loc.s.m. TS med …   Dizionario italiano

  • neuroma — {{#}}{{LM N43740}}{{〓}} {{[}}neuroma{{]}} ‹neu·ro·ma› {{《}}▍ s.m.{{》}} Tumor muy doloroso, que se forma en el espesor del tejido de los nervios …   Diccionario de uso del español actual con sinónimos y antónimos

  • neuroma de Morton — una lesión benigna representada por una fibrosis perineural del nervo digital plantar. Usualmente, el nervio se encuentra afectado a nivel de la cabeza metatarsiana y suele ir acompañado de una respuesta inflamatoria de los tejidos adyacentes… …   Diccionario médico

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