Imágenes de adenomas paratiroideos ectópicos. Una revisión de la literatura

Autores/as

  • Fanny E. Morón Baylor College of Medicine. Houston, Texas.
  • Aaroh M. Parikh Baylor College of Medicine, One Baylor Plaza, BCM 210. Houston, Texas.
  • James W. Suliburk Baylor College of Medicine. Houston, Texas.
  • James W. Suliburk Baylor College of Medicine. Houston, Texas.

Palabras clave:

Glándulas paratiroides, Adenoma, Tomografía computarizada por rayos X

Resumen

Objetivos: 1) Revisar la anatomía y epidemiología de los adenomas paratiroideos ectópicos (APE); 2) resumir el papel de las modalidades de imagen relevantes en su localización; y 3) revisar brevemente los enfoques quirúrgicos para los mismos. Métodos: Reseña literaria de artículos publicados en inglés desde 1984 hasta agosto de 2017. Resultados: El resumen de la literatura indica que la prevalencia de APE es de, aproximadamente, el 20 % en pacientes con hiperparatiroidismo primario que no han sido intervenidos quirúrgicamente, pero en pacientes reintervenidos es tan alta que alcanza el 66 %. Los APE pueden estar localizados en cualquier lugar, desde la bifurcación de la carótida hasta la ventana aortopulmonar. El ultrasonido tiene una agudeza diagnóstica limitada en su identificación, excepto para los que están localizados cerca de la glándula tiroides y al ligamento tirotímico. Requiere gran experiencia del operador. Si se comparan las técnicas de gammagrafía Sestamibi- 99mTc de fase dual, la imagen híbrida con tomografía computarizada de emisión de fotón simple (SPECT) y con tomografía computarizada (TC), la técnica SPECT/TC es superior a la gammagrafía planar o SPECT en la localización de los APE. La TC en cuatro dimensiones (4DTC) delinea con precisión las relaciones anatómicas importantes y es altamente sensible para la localización de los APE. Aunque la 4DTC requiere radiación, medio de contraste intravenoso yodado y experiencia del lector, provee buena información para detectar lesiones en varios sitios ectópicos y guiar el abordaje quirúrgico. Los APE frecuentemente requieren enfoques quirúrgicos alternativos. Se puede intentar una nueva paratiroidectomía en pacientes que han sido previamente sometidos a una exploración bilateral del cuello, por un cirujano experimentado, una vez que la lesión se localice mediante dos modalidades de imágenes. La remoción de la enfermedad no localizada requiere una exploración cuidadosa y sistemática de las localizaciones superiores e inferiores de las glándulas. Conclusión: Los APE plantean desafíos tanto para su localización como para la extirpación quirúrgica. Con el fin de obtener resultados óptimos se requiere contar con la experiencia de un alto número de pacientes y una atención multidisciplinaria.

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Publicado

2019-03-30

Cómo citar

(1)
Morón, F. E. .; Parikh, A. M. .; Suliburk, J. W. .; Suliburk, J. W. . Imágenes De Adenomas Paratiroideos ectópicos. Una revisión De La Literatura. Rev. colomb. radiol. 2019, 30, 5069-5079.

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