Related Experiment Video
Updated: Dec 8, 2025

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
Primary undifferentiated sarcoma of left atrium.
Yelson A Picón-Jaimes1, Leec F Ortega-Uribe2, Javier E Orozco-Chinome3
1Servicio de Consulta Externa, Medicien, Santiago, Chile.
A rare undifferentiated high-grade sarcoma in the left atrium caused severe hemodynamic compromise and pulmonary hypertension. Surgical extraction was successful, with no lymphovascular involvement found in this infrequent cardiac tumor case.
Area of Science:
- Cardiology
- Oncology
- Pathology
Background:
- Cardiac tumors are rare, with sarcomas being an infrequent subtype.
- Early diagnosis and intervention are crucial for managing symptomatic cardiac masses.
Observation:
- A male patient presented with functional class deterioration, diagnosed via transthoracic echocardiography.
- A large tumor occupied 95% of the left atrium, causing hemodynamic compromise and severe pulmonary hypertension.
Findings:
- Surgical exploration via median sternotomy enabled complete mass extraction.
- Pathological analysis confirmed an undifferentiated high-grade sarcoma without lymphovascular invasion.
Implications:
- This case highlights the importance of considering rare cardiac tumors in differential diagnoses.
- Successful surgical management of large left atrial sarcomas is feasible, offering a potential for improved patient outcomes.
Related Concept Videos
Mitral Stenosis I: Introduction
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Mitral Stenosis II: Clinical features and Diagnostic Tests
Cardiac Catheterization III: Left Heart Catheterization
Structure of Cardiac Muscles
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...

