Related Experiment Video
Updated: Aug 20, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Pheochromocytoma and functional paraganglioma
1Department of General Surgery, Yale University School of Medicine, New Haven, CT 06520, USA.
Purpose Of Review:
Pheochromocytoma is a rare, but clinically important tumor of chromaffin cells. Advances in our understanding of the genetic alterations causing hereditary forms and the increasing sensitivity of biochemical assays allow for early identification of high risk individuals and families. Surgical intervention remains the treatment of choice for patients with pheochromocytoma. This article reviews recent developments in the diagnosis, treatment, and pathophysiology of pheochromocytoma, with the objective of developing new guidelines in the identification and management of the disease. It emphasizes current diagnostic and surgical approaches and discusses the potential for future developments in the field.
Summary:
Advances in the molecular basis of pheochromocytoma have introduced new diagnostic modalities. Refinements in imaging techniques have improved the rate of detection of metastatic disease. Innovations in surgical techniques and trials of adrenal sparing surgery may find a niche in the surgical armamentarium.
Related Concept Videos
Peripheral Nervous System: Ganglia and Nerves
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla
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...
The Parathyroid Glands
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
Cranial Part of Parasympathetic Division
The vagus nerve (cranial nerve X) alone accounts for approximately 75...
Adrenal Gland Disorders
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...
Sympathetic Signaling
Sympathetic preganglionic fibers release the neurotransmitter acetylcholine (ACh) onto the ganglionic neurons in the...