Acromegaly causes: Difference between revisions

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===Other tumors===
===Other tumors===
In a few patients, acromegaly is caused not by pituitary tumors but by [[tumor]]s of the [[pancreas]], [[lung]]s, and [[adrenal gland]]s. These tumors also lead to an excess of GH, either because they produce GH themselves or, more frequently, because they produce GHRH, the hormone that stimulates the pituitary to make GH. In these patients, the excess GHRH can be measured in the blood and establishes that the cause of the acromegaly is not due to a pituitary defect. When these non-pituitary tumors are surgically removed, GH levels fall and the symptoms of acromegaly improve.
In a few patients, acromegaly is caused not by pituitary tumors but by [[tumor]]s of the [[pancreas]], [[lung]]s, and [[adrenal gland]]s. These tumors also lead to an excess of GH, either because they produce GH themselves or, more frequently, because they produce GHRH, the hormone that stimulates the pituitary to make GH. In these patients, the excess GHRH can be measured in the blood and establishes that the cause of the acromegaly is not due to a pituitary defect. When these non-pituitary tumors are surgically removed, GH levels fall and the symptoms of acromegaly improve.
==Overview==
*Disease name] may be caused by [cause1], [cause2], or [cause3].
*Common causes of [disease] include [cause1], [cause2], and [cause3].
*The most common cause of [disease name] is [cause 1]. Less common causes of [disease name] include [cause 2], [cause 3], and [cause 4].
*The cause of [disease name] has not been identified. To review risk factors for the development of [disease name], click here.
==Causes==
*Disease name] may be caused by [cause1], [cause2], or [cause3].
*Common causes of [disease] include [cause1], [cause2], and [cause3].
*The most common cause of [disease name] is [cause 1]. Less common causes of [disease name] include [cause 2], [cause 3], and [cause 4].
*The cause of [disease name] has not been identified. To review risk factors for the development of [disease name], click here.
===Life-threatening Causes===
*Life-threatening causes of [symptom/manifestation] include [cause1], [cause2], and [cause3].
*[Cause] is a life-threatening cause of [disease].
===Common Causes===
[Disease name] may be caused by:
*[cause1]
*[cause2]
*[cause3]
*[Disease name] is caused by an infection with [pathogen name].
*[Pathogen name] is caused by [pathogen name].
==Less Common Causes==
Less common causes of [[disease name]] include:
*[cause1]
*[cause2]
*[cause3]
===Genetic Causes===
*[Disease name] is caused by a mutation in the [gene name] gene.
===Causes by Organ System===
{|style="width:80%; height:100px" border="1"
|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" |'''Cardiovascular'''
|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | No underlying causes
|-
|bgcolor="LightSteelBlue"| '''Chemical/Poisoning'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Dental'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Dermatologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Drug Side Effect'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Ear Nose Throat'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Endocrine'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Environmental'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Gastroenterologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Genetic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Hematologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Iatrogenic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Infectious Disease'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Musculoskeletal/Orthopedic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Neurologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Nutritional/Metabolic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Obstetric/Gynecologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Oncologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Ophthalmologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Overdose/Toxicity'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Psychiatric'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Pulmonary'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Renal/Electrolyte'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Rheumatology/Immunology/Allergy'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Sexual'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Trauma'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Urologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Miscellaneous'''
|bgcolor="Beige"| No underlying causes
|-
|}
===Causes in Alphabetical Order===
List the causes of the disease in alphabetical order.
{{columns-list|3|
* Cause 1
* Cause 2
* Cause 3
* Cause 4
* Cause 5
* Cause 6
* Cause 7
* Cause 8
* Cause 9
* Cause 10
}}


==References==
==References==

Revision as of 00:28, 2 August 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Acromegaly is caused by prolonged overproduction of growth hormone, most commonly by the pituitary gland by benign tumors called pituitary adenomas. It can also be produced in non-pituitary tumors but this is very rare.

Causes

Pituitary adenoma

In over 90 percent of acromegaly patients, the overproduction of GH is caused by a benign tumor of the pituitary gland, called an adenoma. These tumors produce excess GH and, as they expand, compress surrounding brain tissues, such as the optic nerves. This expansion causes the headaches and visual disturbances that are often symptoms of acromegaly. In addition, compression of the surrounding normal pituitary tissue can alter production of other hormones, leading to changes in menstruation and breast discharge in women and impotence in men because of reduced testosterone production.

There is a marked variation in rates of GH production and the aggressiveness of the tumor. Some adenomas grow slowly and symptoms of GH excess are often not noticed for many years. Other adenomas grow rapidly and invade surrounding brain areas or the sinuses, which are located near the pituitary. In general, younger patients tend to have more aggressive tumors.

Most pituitary tumors arise spontaneously and are not genetically inherited. Many pituitary tumors arise from a genetic alteration in a single pituitary cell which leads to increased cell division and tumor formation. This genetic change, or mutation, is not present at birth, but is acquired during life. The mutation occurs in a gene that regulates the transmission of chemical signals within pituitary cells; it permanently switches on the signal that tells the cell to divide and secrete GH. The events within the cell that cause disordered pituitary cell growth and GH oversecretion currently are the subject of intensive research.

Other tumors

In a few patients, acromegaly is caused not by pituitary tumors but by tumors of the pancreas, lungs, and adrenal glands. These tumors also lead to an excess of GH, either because they produce GH themselves or, more frequently, because they produce GHRH, the hormone that stimulates the pituitary to make GH. In these patients, the excess GHRH can be measured in the blood and establishes that the cause of the acromegaly is not due to a pituitary defect. When these non-pituitary tumors are surgically removed, GH levels fall and the symptoms of acromegaly improve.

Overview

  • Disease name] may be caused by [cause1], [cause2], or [cause3].
  • Common causes of [disease] include [cause1], [cause2], and [cause3].
  • The most common cause of [disease name] is [cause 1]. Less common causes of [disease name] include [cause 2], [cause 3], and [cause 4].
  • The cause of [disease name] has not been identified. To review risk factors for the development of [disease name], click here.

Causes

  • Disease name] may be caused by [cause1], [cause2], or [cause3].
  • Common causes of [disease] include [cause1], [cause2], and [cause3].
  • The most common cause of [disease name] is [cause 1]. Less common causes of [disease name] include [cause 2], [cause 3], and [cause 4].
  • The cause of [disease name] has not been identified. To review risk factors for the development of [disease name], click here.

Life-threatening Causes

  • Life-threatening causes of [symptom/manifestation] include [cause1], [cause2], and [cause3].
  • [Cause] is a life-threatening cause of [disease].

Common Causes

[Disease name] may be caused by:

  • [cause1]
  • [cause2]
  • [cause3]
  • [Disease name] is caused by an infection with [pathogen name].
  • [Pathogen name] is caused by [pathogen name].

Less Common Causes

Less common causes of disease name include:

  • [cause1]
  • [cause2]
  • [cause3]

Genetic Causes

  • [Disease name] is caused by a mutation in the [gene name] gene.

Causes by Organ System

Cardiovascular No underlying causes
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect No underlying causes
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic No underlying causes
Genetic No underlying causes
Hematologic No underlying causes
Iatrogenic No underlying causes
Infectious Disease No underlying causes
Musculoskeletal/Orthopedic No underlying causes
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes


Causes in Alphabetical Order

List the causes of the disease in alphabetical order.

The unnamed parameter 2= is no longer supported. Please see the documentation for {{columns-list}}.
3

References


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