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Related Concept Videos

Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

1.8K
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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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 V01:28

Pulmonary Tuberculosis V

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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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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 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...
592
Chronic Obstructive Pulmonary Disease01:24

Chronic Obstructive Pulmonary Disease

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COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
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Related Experiment Video

Updated: Mar 7, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
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Coexistent Sarcoidosis and Tuberculosis: A Case Report.

Cristiano Carbonelli1, Ernesto Giuffreda, Antonio Palmiotti

  • 1Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, Azienda Ospedaliero Universitaria Foggia, Foggia, Italy.

Respiration; International Review of Thoracic Diseases
|February 9, 2017
PubMed
Summary

Tuberculosis (TB) and sarcoidosis can present with overlapping symptoms, complicating diagnosis. This case highlights a rare coexistent systemic sarcoid manifestation and low-antigen TB, emphasizing the need for careful consideration of both conditions.

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Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Immunology

Background:

  • Necrotizing granulomatous lung diseases often present diagnostic challenges, with tuberculosis (TB) being the most common cause.
  • Necrotizing sarcoidosis is typically considered rare and histologically distinct from TB.

Observation:

  • A 45-year-old male presented with severe, multisystem disease and fever resistant to anti-TB therapy but responsive to corticosteroids.
  • Initial diagnosis was complicated by overlapping clinical manifestations of TB and sarcoidosis.

Findings:

  • Late identification of Mycobacterium tuberculosis in pleural specimens confirmed TB.
  • The patient's response to combined anti-TB and corticosteroid therapy suggested a coexistent sarcoid manifestation.

Implications:

  • This case suggests a possible role for mycobacteria as a trigger for sarcoidosis.
  • Highlights an underrecognized entity of coexistent systemic sarcoidosis and low-antigen TB.
  • Emphasizes the importance of considering both TB and sarcoidosis in challenging granulomatous lung disease cases.