Related Experiment Video
Updated: Mar 18, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
Mediastinal paraganglioma fed by the left circumflex artery
José María González-Santos1, María Elena Arnáiz-García2, Ángel Muñoz-Herrera3
1Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain.
Abstract:
A 60-year-old male patient who previously underwent carotid and jugular paraganglioma resections was referred because of a mediastinal recurrence at the root of the great vessels. Coronary angiography confirmed the circumflex artery of the left coronary artery as the feeding artery of the tumour. The patient underwent surgery due to the tumour's location and malignant potential. Upon mass resection, histopathological examination characterized the tumour as a secondary paraganglioma. Neuroendocrine tumours arising from chromaffin tissues at the extra-adrenal paraganglions of the autonomic nervous system are termed paragangliomas. Clinically, they are divided into functional and non-functional types, depending on their catecholamine secretion. The mediastinal location is exceptional and its treatment is challenging.
More Related Videos
Related Concept Videos
Cardiac Catheterization III: Left Heart Catheterization
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
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...
Mitral Stenosis II: Clinical features and Diagnostic Tests
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Mitral Stenosis I: Introduction

