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Related Concept Videos

Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

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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...
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Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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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.
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COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

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Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
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Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

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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:
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Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
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Advanced Pulmonary Sarcoidosis.

Rohit Gupta1, Robert P Baughman2

  • 1Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania.

Seminars in Respiratory and Critical Care Medicine
|August 11, 2020
PubMed
Summary
This summary is machine-generated.

Advanced pulmonary sarcoidosis is fatal for 5% of patients, presenting challenges like fibrosis, hypertension, and infections. New imaging techniques aid in diagnosing and treating these complex conditions.

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Area of Science:

  • Pulmonology
  • Immunology
  • Radiology

Background:

  • Advanced pulmonary sarcoidosis leads to mortality in at least 5% of patients.
  • Key complications include pulmonary fibrosis, pulmonary hypertension, and respiratory infections.
  • Standard anti-inflammatory therapies are often insufficient for advanced disease.

Purpose of the Study:

  • To outline the primary challenges in advanced pulmonary sarcoidosis.
  • To discuss the contributing factors to these complications.
  • To highlight the role of advanced imaging in diagnosis and treatment.

Main Methods:

  • Review of existing literature on advanced pulmonary sarcoidosis.
  • Description of pathological mechanisms for fibrosis, hypertension, and infections.
  • Discussion of novel imaging modalities like high-resolution CT and PET scans.

Main Results:

  • Pulmonary fibrosis results from chronic inflammation and potentially abnormal wound healing.
  • Sarcoidosis-associated pulmonary hypertension (SAPH) is linked to fibrosis, vascular granulomas, and hypoxia.
  • Respiratory infections arise from lung structural changes and impaired immunity.

Conclusions:

  • Advanced pulmonary sarcoidosis requires multifaceted treatment strategies beyond anti-inflammatory drugs.
  • High-resolution CT and 18F-FDG PET imaging are crucial for accurate diagnosis.
  • These advanced techniques help tailor specific therapies for better patient outcomes.