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Related Concept Videos

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,...
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:
Pleura of the Lungs01:13

Pleura of the Lungs

The lungs are nestled in a cavity, shielded by the pleura. The pleura, a form of serous membrane, wraps around each lung. This membrane arrangement consists of two layers: the visceral and parietal pleurae. The visceral pleura lines the surface of the lungIn contrast, the parietal pleura is the outer layer and contacts to the thoracic wall, the mediastinum, and the diaphragm. The hilum is the point of connection between the visceral and parietal layers. The space between the parietal and...
Pleural Disorders: Types and Brief Description01:30

Pleural Disorders: Types and Brief Description

The pleura is a vital part of the respiratory system. It's a double-layered membrane surrounding the lungs and lining the chest cavity. The two layers of the pleura are:
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...
Endoscopic Studies II: Thoracocentesis01:26

Endoscopic Studies II: Thoracocentesis

Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...

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Related Experiment Video

Updated: Jun 3, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
09:17

Point-of-Care Lung Ultrasound in Adults: Image Acquisition

Published on: March 3, 2023

[Fluid in the pleural space--from problem to therapy].

Henrik Riska1, Seppo Saarelainen

  • 1HYKS:n keuhkosairauksien klinikka, PL 340, 00029 HUS.

Duodecim; Laaketieteellinen Aikakauskirja
|March 30, 2011
PubMed
Summary

Analyzing pleural fluid is crucial for diagnosing the cause of fluid accumulation when clinical presentation is unclear. Differentiating between transudate and exudate, and identifying malignant versus benign causes, guides further diagnostic steps.

Area of Science:

  • Pulmonology
  • Internal Medicine
  • Pathology

Context:

  • Pleural fluid accumulation can stem from diverse pathologies.
  • Clinical assessment alone may not reveal the etiology of pleural effusions.
  • Pleural fluid analysis is a key diagnostic tool.

Purpose:

  • To outline the diagnostic utility of pleural fluid examination.
  • To differentiate between transudative and exudative effusions.
  • To guide further investigations for malignant versus benign causes of exudative pleural fluid.

Summary:

  • Pleural fluid analysis is indicated when the cause of fluid in the pleural space is not clinically evident.
  • The initial diagnostic step involves classifying the fluid as either a transudate or an exudate.

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Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
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Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

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A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica
03:32

A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica

Published on: April 12, 2019

Related Experiment Videos

Last Updated: Jun 3, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
09:17

Point-of-Care Lung Ultrasound in Adults: Image Acquisition

Published on: March 3, 2023

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
03:22

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Published on: November 10, 2023

A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica
03:32

A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica

Published on: April 12, 2019

  • Further characterization of exudative effusions is necessary to determine if the underlying disease is malignant or benign.

    • Impact:

    • Pleural fluid examination provides valuable diagnostic clues for various diseases.
    • It helps avoid unnecessary invasive procedures by offering initial diagnostic insights.
    • This analysis can significantly influence patient management and diagnostic pathways.