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Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular spaces.
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...

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Related Experiment Video

Updated: May 14, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

Mediastinal lymphoma eroding the right atrium.

Salma Saeed1, Sarfraz Ali Mangi, Riaz Ahmad

  • 1Department of Cardiovascular Medicine, Quaid-e-Azam Medical College/Bahawal Victoria Hospital, Bahawalpur.

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP
|February 5, 2013
PubMed
Summary

Mediastinal lymphoma can present as an unusual intra-cardiac mass in the right atrium. This case highlights the importance of considering secondary tumors in cardiac mass diagnosis.

Related Experiment Videos

Last Updated: May 14, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

Area of Science:

  • Cardiology
  • Oncology
  • Pathology

Background:

  • Intra-cardiac masses are uncommon, with thrombus being the most frequent cause.
  • Secondary cardiac tumors are more prevalent than primary ones and can invade cardiac chambers.
  • Tumor proximity to the heart increases the likelihood of cardiac chamber invasion.

Observation:

  • A 55-year-old female presented with an intra-cardiac mass in the right atrium.
  • Transthoracic echocardiogram initially detected the mass.
  • The mass was subsequently confirmed as mediastinal lymphoma through further diagnostic imaging.

Findings:

  • The case details an unusual presentation of mediastinal lymphoma.
  • The lymphoma manifested as an intra-cardiac mass within the right atrium.
  • Diagnostic modalities confirmed the nature of the intra-cardiac mass.

Implications:

  • This case underscores the diagnostic challenge of intra-cardiac masses.
  • It emphasizes the need to consider extranodal lymphomas as a differential diagnosis for right atrial masses.
  • Early and accurate diagnosis is crucial for appropriate patient management and treatment of cardiac masses.