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Related Concept Videos

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...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.

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Related Experiment Video

Updated: Jun 1, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
04:44

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

Published on: June 16, 2020

[Rheumatoid arthritis and interstitial lung alterations - a clear case, isn't it?].

D Franzen1, U Bürgi, A Gaspert

  • 1Klinik für Pneumologie, Universitätsspital Zürich, Rämistrasse 100, 8091 Zürich. daniel.franzen@usz.ch

Praxis
|May 27, 2011
PubMed
Summary
This summary is machine-generated.

Caplan syndrome (CS) involves lung nodules in rheumatoid arthritis (RA) patients. Diagnosis considers nodule size, with subtypes including classic and silicotic types, impacting differential diagnosis for respiratory symptoms.

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Area of Science:

  • Rheumatology
  • Pulmonology
  • Radiology

Background:

  • Rheumatoid arthritis (RA) is a chronic autoimmune disease.
  • Caplan syndrome (CS) is a specific lung manifestation associated with RA.
  • Pulmonary involvement in RA can present with diverse pathologies.

Observation:

  • A case of rheumatoid arthritis (RA) with asymptomatic, diffuse reticulo-nodular lung parenchymal alterations was observed.
  • The lung alterations showed upper lobe predominance.
  • Diagnosis of Caplan syndrome (CS) was established based on these findings.

Findings:

  • Caplan syndrome (CS) is classified into classic (Caplan) and silicotic types based on pulmonary nodule size.
  • Patients with CS often exhibit significant radiographic or CT findings with minimal symptoms.
  • Differential diagnosis for respiratory symptoms in CS patients must include infectious complications and drug toxicity.

Implications:

  • Accurate classification of CS subtypes is crucial for patient management.
  • Understanding the radiographic presentation aids in early diagnosis of CS in RA patients.
  • Awareness of potential complications is vital for managing respiratory symptoms in RA patients with CS.