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Related Concept Videos

Anatomy of the Adrenal Glands01:17

Anatomy of the Adrenal Glands

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The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct...
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Adrenal Gland Disorders01:27

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Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Hormones of the Adrenal Glands01:31

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Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
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Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla01:27

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The sympathetic pathways of the collateral ganglia and adrenal medulla serve unique but interconnected roles in the sympathetic response.
Collateral Ganglia
Sympathetic preganglionic axons reach the collateral ganglia along the route of splanchnic nerves. These nerves bypass the sympathetic trunk and communicate with sympathetic postganglionic neurons housed in the prevertebral ganglia. These ganglia supply the organs of the abdominopelvic cavity.
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Exercise and Muscle Performance01:27

Exercise and Muscle Performance

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Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
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Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

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Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
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Updated: Jan 29, 2026

Performing Colonoscopic-Guided Pinch Biopsies in Mice and Evaluating Subsequent Tissue Changes
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Adrenal biopsy: performance and use.

Catherine D Zhang1, Danae A Delivanis2, Patrick W Eiken3

  • 1Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA.

Minerva Endocrinologica
|February 9, 2019
PubMed
Summary
This summary is machine-generated.

Adrenal biopsy aids in diagnosing adrenal masses when imaging is inconclusive. This review details image-guided biopsy techniques and their role in patient management.

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Related Experiment Videos

Last Updated: Jan 29, 2026

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Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Increased detection of adrenal masses due to widespread abdominal imaging.
  • Challenges in differentiating benign from malignant adrenal lesions.
  • Limitations of current imaging modalities leading to indeterminate findings.

Purpose of the Study:

  • To review image-guided adrenal biopsy techniques.
  • To highlight the utility of adrenal biopsy in clinical scenarios.
  • To examine diagnostic performance and safety of adrenal biopsy.

Main Methods:

  • Review of percutaneous and endoscopic image-guided adrenal biopsy techniques.
  • Analysis of clinical utility in various scenarios.
  • Evaluation of diagnostic accuracy and adverse event rates.

Main Results:

  • Adrenal biopsy provides crucial diagnostic information for indeterminate adrenal lesions.
  • Image-guided biopsy techniques offer varying degrees of utility and safety.
  • Established diagnostic performance and adverse event rates for adrenal biopsy.

Conclusions:

  • Adrenal biopsy is a valuable tool for evaluating indeterminate adrenal masses.
  • A suggested algorithm for adrenal biopsy use is outlined.
  • Biopsy aids in definitive diagnosis and management of adrenal lesions.