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Related Concept Videos

Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

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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...
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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...
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Related Experiment Video

Updated: Oct 4, 2025

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
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Multiple Cardiac Calcified Amorphous Tumors.

Yuto Suetani1, Yoh Arita1, Kenji Tanaka2

  • 1Department of Cardiology, Japan Community Healthcare Organization Osaka Hospital, Osaka, Japan.

JACC. Case Reports
|February 2, 2022
PubMed
Summary

A patient on hemodialysis developed heart failure due to mobile masses in the left atrium. Surgical removal revealed these masses were calcified amorphous tumors, visualized via echocardiography.

Keywords:
CAT, calcified amorphous tumorCRP, C-reactive proteinIE, infective endocarditisMR, mitral regurgitationMS, mitral stenosisNYHA, New York Heart AssociationTTE, transthoracic echocardiographycalcified amorphous tumorechocardiographyheart failureinfective endocarditis

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Area of Science:

  • Cardiology
  • Pathology
  • Medical Imaging

Background:

  • Heart failure is a significant complication in patients undergoing hemodialysis.
  • Mobile cardiac masses can present diagnostic challenges and pose embolic risks.

Purpose of the Study:

  • To present a case of a patient with hemodialysis-dependent heart failure.
  • To illustrate the echocardiographic findings of mobile left atrial masses.
  • To describe the histopathological diagnosis of these masses.

Main Methods:

  • Echocardiography, including 3-dimensional transesophageal echocardiography, was used for imaging.
  • Surgical excision of the left atrial masses was performed.
  • Histopathological examination was conducted on the excised masses.

Main Results:

  • Echocardiography revealed multiple mobile masses within the left atrium.
  • Histopathological analysis confirmed the masses to be calcified amorphous tumors.
  • The patient presented with symptoms of heart failure.

Conclusions:

  • Calcified amorphous tumors can manifest as mobile masses in the left atrium.
  • These tumors can cause significant clinical manifestations such as heart failure.
  • Echocardiography is crucial for diagnosing and characterizing such cardiac masses.