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Related Concept Videos

Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

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...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Inflammation01:38

Inflammation

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Related Experiment Video

Updated: Jul 14, 2026

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
06:35

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Published on: February 8, 2019

Sudden cardiac death due to giant cell inflammatory processes.

Rebecca A Hamilton1, Linda Sullivan, Barbara C Wolf

  • 1Office of the District 21 Medical Examiner, 70 Danley Drive, Fort Myers, FL 33907, USA. rebecca_hamilton_md@hotmail.com

Journal of Forensic Sciences
|May 26, 2007
PubMed
Summary

Giant cell myocarditis, a rare heart condition, can cause sudden death. Prompt diagnosis through histology is crucial for understanding this fatal cardiac inflammation.

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Last Updated: Jul 14, 2026

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
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Published on: December 5, 2011

Area of Science:

  • Cardiovascular Pathology
  • Immunohistochemistry
  • Forensic Pathology

Background:

  • Granulomatous inflammation of the myocardium can stem from infections, hypersensitivity, or autoimmune disorders.
  • Systemic granulomatous diseases like sarcoidosis may involve the heart, sometimes leading to sudden cardiac death.
  • Giant cell myocarditis (idiopathic myocarditis) is a rare, isolated cardiac condition, often diagnosed post-mortem.

Observation:

  • Two cases of sudden cardiac death due to myocardial giant cell inflammation are presented.
  • Both individuals had no prior diagnosis and collapsed unexpectedly.
  • The cases highlight the differential diagnoses for sudden cardiac death involving myocardial giant cell inflammation.

Findings:

  • Giant cell inflammation in the myocardium can be a cause of sudden cardiac death.
  • Histologic examination and immunohistochemical studies are vital for diagnosis.
  • Distinguishing idiopathic giant cell myocarditis from systemic causes is critical.

Implications:

  • Understanding the causes of sudden cardiac death due to myocardial inflammation is essential for prevention and diagnosis.
  • Histopathology plays a key role in identifying rare cardiac conditions.
  • Further research may elucidate the etiology of idiopathic giant cell myocarditis.