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Enfermedad de Cushing - Overview

Nombres alternativos

Enfermedad de Cushing hipofisaria

Definición:

Es una afección en la cual la hipófisis, un órgano del sistema endocrino, secreta demasiada hormona corticotropina (ACTH, por sus siglas en inglés).

La enfermedad de Cushing es una forma de síndrome de Cushing.

Causas:

La enfermedad de Cushing es provocada por un tumor o crecimiento excesivo ( hiperplasia) de la hipófisis, una glándula localizada en la base del cerebro.

Las personas con la enfermedad de Cushing tienen demasiada corticotropina que estimula la producción y secreción de cortisol, una hormona del estrés. El exceso de corticotropina significa demasiado cortisol.

El cortisol normalmente se secreta en situaciones estresantes. Esta hormona controla el uso por parte del cuerpo de carbohidratos, grasas y proteínas y también ayuda a reducir la respuesta del sistema inmunitario a la hinchazón (inflamación).

  • Reviewed last on: 11/23/2009
  • Ari S. Eckman, MD, Division of Endocrinology and Metabolism, Johns Hopkins School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Stewart PM. The adrenal cortex. In: Kronenberg H, Melmed S, Polonsky K, Larsen PR, eds. Williams Textbook of Endocrinology. Philadelphia, Pa: Saunders Elsevier; 2008:chap 14.

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