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hypopituitarism

[hahy-poh-pi-too-i-tuh-riz-uh m, -tyoo-] /ˌhaɪ poʊ pɪˈtu ɪ təˌrɪz əm, -ˈtyu-/
noun, Pathology
1.
abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
2.
the condition produced by this, characterized by obesity, retention of adolescent traits, sterility, amenorrhea, and, in extreme cases, dwarfism.
Origin
1905-1910
1905-10; hypo- + pituitar(y) + -ism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hypopituitarism
  • As the tumor grows, hormone-releasing cells of the pituitary may be damaged, causing hypopituitarism.
  • In contrast to healthy subjects, patients with hypopituitarism do not exhibit endocrine responses when hormones are injected.
British Dictionary definitions for hypopituitarism

hypopituitarism

/ˌhaɪpəpɪˈtjuːɪtəˌrɪzəm/
noun
1.
(pathol) underactivity of the pituitary gland
Derived Forms
hypopituitary, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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hypopituitarism in Medicine

hypopituitarism hy·po·pi·tu·i·ta·rism (hī'pō-pĭ-tōō'ĭ-tə-rĭz'əm, -tyōō'-)
n.

  1. Deficient or diminished production of pituitary hormones.

  2. The condition resulting from a deficiency in pituitary hormone, especially growth hormone, characterized by dwarfism in children.


hy'po·pi·tu'i·tar'y (-těr'ē) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for hypopituitarism

deficiency of pituitary hormones caused by damage to the pituitary gland. Patients may have a deficiency of one or all pituitary hormones, including vasopressin (antidiuretic hormone), the hormone of the posterior pituitary gland that controls the excretion of urine. Deficiency of all pituitary hormones is known as panhypopituitarism. Pituitary hormone deficiencies can occur as a result of pituitary disease or hypothalamic disease, with deficiency of the hypothalamic hormones that stimulate the secretion of most pituitary hormones. The causes of hypopituitarism include pituitary and hypothalamic tumours, infections, postpartum pituitary hemorrhage (Sheehan syndrome), and surgery for secreting or nonsecreting pituitary tumours (see pituitary gland).

Learn more about hypopituitarism with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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