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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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...
Cushing Syndrome II: Pathophysiology01:19

Cushing Syndrome II: Pathophysiology

Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
Cushing Syndrome I: Introduction01:26

Cushing Syndrome I: Introduction

Cushing syndrome refers to the collection of clinical manifestations that arise when tissues are exposed to excessive amounts of cortisol or cortisol-like medications over an extended period. Cortisol, a glucocorticoid produced by the adrenal cortex, regulates metabolism, immune responses, and the body’s adaptation to stress. When its concentration remains chronically elevated, these physiological pathways become dysregulated, resulting in the characteristic features of the syndrome.Exogenous...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla01:27

Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla

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.
The greater splanchnic nerve, formed by the...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...

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Related Experiment Video

Updated: May 22, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
06:08

A Novel Method: Super-selective Adrenal Venous Sampling

Published on: September 15, 2017

[Pheochromocytoma. A case report].

B Rípodas1, A Arillo, M Murie

  • 1Centro de Salud Chantrea, Pamplona, Spain. aarilloc@cfnavarra.es

Anales Del Sistema Sanitario De Navarra
|May 4, 2012
PubMed
Summary
This summary is machine-generated.

A 34-year-old male with malignant pheochromocytoma, a rare adrenal gland tumor, underwent successful laparoscopic surgery. This case highlights the diagnosis and treatment of this rare catecholamine-secreting neoplasm.

Related Experiment Videos

Last Updated: May 22, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
06:08

A Novel Method: Super-selective Adrenal Venous Sampling

Published on: September 15, 2017

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Urology

Background:

  • Pheochromocytoma is a rare neuroendocrine tumor arising from chromaffin cells, typically presenting with catecholamine excess symptoms.
  • Malignant pheochromocytoma has a low incidence, posing diagnostic and therapeutic challenges.
  • Early diagnosis and surgical intervention are crucial for managing pheochromocytoma.

Observation:

  • A 34-year-old male presented with recurrent left-sided abdominal pain.
  • Imaging revealed a 6.5 cm left adrenal gland mass.
  • Elevated urinary metanephrines and catecholamines confirmed catecholamine hypersecretion.

Findings:

  • The patient was diagnosed with malignant pheochromocytoma.
  • A left laparoscopic adrenalectomy was successfully performed.
  • Pathological examination confirmed the malignancy of the resected tumor.

Implications:

  • This case underscores the importance of considering pheochromocytoma in patients with unexplained abdominal pain and hormonal imbalances.
  • Laparoscopic adrenalectomy is a viable and effective surgical approach for pheochromocytoma.
  • Prompt diagnosis and treatment are essential for favorable outcomes in malignant pheochromocytoma.