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Related Concept Videos

Pneumothorax-II01:27

Pneumothorax-II

Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...

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Related Experiment Video

Updated: May 29, 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

[Thoracic sarcoidosis].

I Herráez Ortega1, L López González

  • 1Complejo Asistencial Universitario de León, León, España. iherraez@yahoo.es

Radiologia
|September 23, 2011
PubMed
Summary

Sarcoidosis diagnosis relies on correlating clinical, radiological, and histological findings. High-resolution CT (HRCT) offers superior sensitivity over plain chest films for detecting thoracic involvement and disease activity in sarcoidosis.

Area of Science:

  • Pulmonology
  • Radiology
  • Cardiology

Background:

  • Sarcoidosis is a multisystemic granulomatous disease with unknown cause, primarily affecting thoracic lymph nodes and lungs.
  • Disease staging traditionally uses plain chest films, which have limitations in sensitivity for detecting lymph node, lung, or bronchial involvement.

Purpose of the Study:

  • To highlight the diagnostic utility of high-resolution computed tomography (HRCT) in sarcoidosis.
  • To emphasize the challenges and advanced imaging techniques for diagnosing cardiac sarcoidosis.

Main Methods:

  • Comparison of plain chest films with high-resolution CT (HRCT) for thoracic sarcoidosis detection.
  • Review of diagnostic approaches for cardiac sarcoidosis, including magnetic resonance imaging (MRI) and positron emission tomography (PET).

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Thoracoscopic Extended Right Middle Plus Lower Sleeve Lobectomy for Non-Small-Cell Lung Cancer

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Main Results:

  • HRCT is more sensitive than plain chest films for detecting lymph node, lung, and bronchial involvement in sarcoidosis.
  • HRCT findings can be typical, pathognomic, or atypical, providing insights into disease activity, fibrosis, and complications.
  • Diagnosing cardiac sarcoidosis is challenging, with MRI and PET offering greater specificity than other methods, though endomyocardial biopsy confirmation is infrequent.

Conclusions:

  • Accurate sarcoidosis diagnosis requires integrating clinical, radiological (especially HRCT), and histological data.
  • Advanced imaging modalities are crucial for evaluating cardiac involvement, a potentially fatal complication of sarcoidosis.