A Member of the University of Maryland Medical System   |   In Partnership with the University of Maryland School of Medicine

Share

Email PageEmail Print PagePrint

Home > Medical Reference > Encyclopedia (English)

Toggle: English / Spanish

Tumor hipofisario - Overview

Nombres alternativos

Tumor pituitario (tumor de la hipófisis)

Definición:

Es un crecimiento anormal en la hipófisis, la parte del cerebro que regula el equilibrio hormonal del cuerpo.

Causas:

La mayoría de los tumores hipofisarios no son cancerosos (benignos). Hasta el 20% de las personas tienen tumores hipofisarios. Sin embargo, muchos de estos tumores no causan síntomas y nunca se diagnostican durante la vida de la persona

La hipófisis es una glándula endocrina del tamaño de una arveja que está ubicada en la base del cerebro y ayuda controlar la secreción de hormonas de otras glándulas endocrinas, como la tiroides y las glándulas suprarrenales. La hipófisis también secreta hormonas que afectan directamente los tejidos corporales, como los huesos y las glándulas mamarias. Entre estas hormonas se encuentran las siguientes:

  • Corticotropina (ACTH)
  • Hormona del crecimiento (GH)
  • Prolactina
  • Hormona estimulante de la tiroides (TSH)

Glándula pituitaria

A medida que el tumor crece, se puede presentar daño en algunas células secretoras de hormonas de la hipófisis, lo que causa hipopituitarismo.

Se desconocen las causas de los tumores hipofisarios, aunque algunos son parte de un trastorno hereditario llamado neoplasia endocrina múltiple I (NEM I).

Otros tipos de tumores que se pueden encontrar en la misma área de la cabeza donde se ubica el tumor hipofisario son:

  • 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

Melmed S, Kleinberg D. Anterior pituitary. In: Kronenberg HM, Melmed S, Polonsky KS, Larsen PR. Williams Textbook of Endocrinology. 11th ed. Philadelphia, PA: Saunders Elsevier; 2008:chap 8.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
Adam QualityA.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
Connect with UMMC
Facebook Twitter YouTube Blog iPhone

Please rate the quality of this article.

Do you find this article to be helpful / informative?
              
Poor                                       Excellent

Do you have any brief comments on this page: (up to 255 characters)

© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885