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Related Concept Videos

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...
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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...
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:
Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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 progression...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...

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Related Experiment Videos

Primary Pleural Tuberculosis Presenting With Noncaseating Granulomas: A Diagnostic Challenge.

Maria Akiki1, Chebly Dagher1, Jessica Abrantes-Figueiredo2

  • 1Department of Internal Medicine, University of Connecticut, Farmington, 06030, Connecticut, USA, uconn.edu.

Case Reports in Infectious Diseases
|May 8, 2026
PubMed
Summary

Diagnosing tuberculous pleural effusion is difficult due to low bacterial presence. This case shows pleural biopsy is crucial for early management when initial tests are negative, especially with high suspicion for tuberculosis.

Keywords:
Mycobacterium tuberculosisnoncaseating granulomapleural biopsypleural tuberculosisthoracoscopy

Related Experiment Videos

Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Microbiology

Background:

  • Tuberculous pleural effusion is a common extrapulmonary tuberculosis form.
  • Diagnosis is challenging due to paucibacillary nature and need for invasive procedures.

Purpose of the Study:

  • To highlight the diagnostic challenges of tuberculous pleural effusion.
  • To emphasize the role of pleural biopsy and empiric therapy.

Main Methods:

  • Case report of a 26-year-old male with suspected tuberculous pleural effusion.
  • Diagnostic procedures included thoracentesis, pleural biopsy, and AFB smear/PCR.
  • Treatment involved empiric antituberculous therapy.

Main Results:

  • Initial diagnostic tests (smear, PCR) were negative.
  • Pleural biopsy showed noncaseating granulomas, leading to empiric therapy.
  • Pleural fluid cultures later confirmed Mycobacterium tuberculosis.

Conclusions:

  • Pleural biopsy is vital for early diagnosis and management of tuberculous pleural effusion.
  • Empiric antituberculous therapy is recommended with high clinical suspicion and risk factors, even with negative initial tests.