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Related Concept Videos

Pleural Effusion II: Symptoms and Management01:28

Pleural Effusion II: Symptoms and Management

Pleural Effusion Overview
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
Pleural Effusion I: Introduction01:25

Pleural Effusion I: Introduction

Pleural effusion is an abnormal fluid accumulation in the pleural cavity, a narrow space between the lungs and the chest wall. It is not a disease per se but rather a symptom or indication of an underlying disease. In normal circumstances, this space contains a small amount of fluid (5 to 15 mL), a lubricant facilitating the non-frictional movement of the pleural surfaces.
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
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 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 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...

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Updated: Jun 14, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
03:22

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Published on: November 10, 2023

Update on tuberculous pleural effusion.

Richard W Light1

  • 1Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee 37232-2650, USA. rlight98@yahoo.com

Respirology (Carlton, Vic.)
|March 30, 2010
PubMed
Summary
This summary is machine-generated.

Tuberculous pleuritis, a complication in 3-25% of tuberculosis cases, is diagnosed by pleural fluid adenosine deaminase levels over 40 U/L. Early diagnosis and treatment prevent further tuberculosis development.

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Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
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Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Microbiology

Background:

  • Tuberculous pleuritis is a significant extrapulmonary manifestation of tuberculosis.
  • It occurs in 3-25% of tuberculosis patients, with higher incidence in HIV-positive individuals.
  • Undiagnosed tuberculous pleuritis leads to a high risk of subsequent pulmonary or extrapulmonary tuberculosis.

Purpose of the Study:

  • To highlight the importance of considering tuberculous pleuritis in undiagnosed pleural effusions.
  • To review diagnostic methods for tuberculous pleuritis.
  • To emphasize the link between tuberculous pleuritis and subsequent tuberculosis development.

Main Methods:

  • Analysis of clinical presentation, pleural fluid characteristics, and diagnostic markers.
  • Review of diagnostic utility of pleural fluid adenosine deaminase (ADA) and gamma-interferon levels.
  • Evaluation of tissue biopsy and culture methods for Mycobacterium tuberculosis detection.

Main Results:

  • Tuberculous pleuritis typically presents acutely with fever, cough, and pleuritic chest pain.
  • Pleural fluid is an exudate, predominantly lymphocytic, with low culture positivity (<40%).
  • Pleural fluid ADA levels >40 U/L are highly indicative of tuberculous pleuritis, while levels <40 U/L suggest other causes.

Conclusions:

  • Elevated pleural fluid ADA levels are a reliable and accessible diagnostic marker for tuberculous pleuritis.
  • Gamma-interferon and tissue biopsy confirm diagnosis in ambiguous cases.
  • Standard tuberculosis chemotherapy is effective for treating tuberculous pleuritis.