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Tumor del glomus timpánico - Overview

Nombres alternativos

Paraganglioma del glomo timpánico

Definición:

Es un tumor del oído medio y del hueso por detrás del oído (apófisis mastoides).

Causas, incidencia y factores de riesgo:

Un tumor del glomus timpánico crece en el hueso temporal del cráneo, detrás del tímpano (membrana timpánica).

Esta área contiene fibras nerviosas (cuerpos glómicos) que normalmente responden a cambios en la temperatura corporal o la presión arterial.

Estos tumores por lo regular ocurren al final de la vida, alrededor de la edad de 60 ó 70 años, pero pueden aparecer a cualquier edad.

La causa de un tumor del glomus timpánico se desconoce. Por lo general, no hay ningún factor de riesgo conocido. Los tumores glómicos han sido asociados con cambios (mutaciones) en un gen responsable de la enzima succinato deshidrogena (SDH).

  • Reviewed last on: 2/1/2010
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Seth Schwartz, MD, MPH, Otolaryngologist, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Rucker JC. Cranial neuropathies. In: Bradley WG, Daroff RB, Fenichel GM, Jankovic J. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 74.

Marsh M, Jenkins H. Temporal bone neoplasms and lateral cranial base surgery. In: Cummings CW, Flint PW, Haughey BH, et al. Otolaryngology: Head & Neck Surgery. 4th ed. St. Louis, Mo: Mosby; 2005:chap 162.

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