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Updated: Apr 3, 2026

Isolation of Atrial Myocytes from Adult Mice

Isolation of Atrial Myocytes from Adult Mice

Published on: July 25, 2019

Right Atrial Myxoma and Syncope.

Islamiyat Babs Animashaun¹, Oluwaseun A Akinseye², Leah I Akinseye³

¹Department of Internal Medicine, Harlem Hospital Center, New York, NY, USA.

The American Journal of Case Reports

|September 22, 2015

Summary

A rare case of right atrial myxoma caused syncope in an 89-year-old man. Cardiac MRI effectively diagnosed the tumor, highlighting its role in unexplained syncope.

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Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

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Published on: September 24, 2021

Area of Science:

Cardiology
Cardiovascular Imaging

Background:

Right atrial myxoma is a rare cardiac tumor, comprising 15-20% of all cardiac myxomas.
Syncope is an exceptionally uncommon presentation for right atrial myxoma.

Observation:

An 89-year-old male presented with syncope, revealing a 1.7x2.2 cm mass in the right atrium via echocardiogram.
Cardiac MRI demonstrated a heterogeneously enhancing mass, characteristic of myxoma, attached by a stalk.

Findings:

The mobile right atrial myxoma likely caused transient tricuspid valve obstruction, leading to syncope.
Cardiac MRI with gadolinium contrast differentiated the myxoma from a potential right atrial thrombus.

Implications:

Right heart tumors should be included in the differential diagnosis for unexplained syncope.
Cardiac MRI is a valuable tool for diagnosing cardiac myxomas and distinguishing them from thrombi.