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Tumor de la fosa posterior - Symptom

Nombres alternativos

Tumor cerebral infratentorial; Glioma del tronco encefálico

Síntomas:

Cuando se presentan tumores de la fosa posterior, los síntomas se desarrollan de manera muy temprana y pueden abarcar:

Los síntomas a raíz de los tumores de la fosa posterior también se presentan cuando el tumor daña estructuras locales, como los pares craneales. Los síntomas de daño a los pares craneales abarcan:

  • Pupilas dilatadas
  • Desviaciones del ojo
  • Debilidad de los músculos de la cara
  • Hipoacusia
  • Pérdida parcial de la sensibilidad en la cara
  • Alteraciones del sentido del gusto
  • Inestabilidad al caminar
  • Deficiencias en el campo visual

Signos y exámenes:

El diagnóstico se basa en la historia clínica y un examen físico completos, seguido de exámenes imagenológicos. La mejor manera de examinar la fosa posterior es con una resonancia magnética. Las tomografías computarizadas generalmente no son de ayuda.

Se pueden emplear los siguientes procedimientos para extirpar un pedazo de tejido del tumor para ayudar con el diagnóstico:

  • Cirugía cerebral abierta, llamada craneotomía posterior
  • Biopsia estereotáctica
  • Reviewed last on: 3/2/2010
  • David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital.

Referencias

Maity A, Pruitt AA, Judy KD, Phillips PC, Lustig R. Cancer of the central nervous system. In: Abeloff MD, Armitage JO, Niederhuber JE, Kastan MB, McKenna WG, eds. Abeloff’s Clinical Oncology. 4th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2008:chap 70.

Wilne S, Collier J, Kennedy C, Koller K, Grundy R, Walker D. Presentation of childhood CNS tumours: a systematic review and meta-analysis. Lancet Oncol. 2007;8(8):685-695.

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