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Related Concept Videos

Pleural Disorders: Types and Brief Description01:30

Pleural Disorders: Types and Brief Description

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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:
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Pleura of the Lungs01:13

Pleura of the Lungs

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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...
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Pleural Effusion I: Introduction01:25

Pleural Effusion I: Introduction

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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...
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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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Pleural Effusion II: Symptoms and Management01:28

Pleural Effusion II: Symptoms and Management

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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:
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Pneumothorax-I01:26

Pneumothorax-I

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A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
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Related Experiment Video

Updated: Apr 11, 2026

Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines
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Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines

Published on: April 21, 2022

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Pleural neoplastic pathology.

Georgia Karpathiou1, Dimitrios Stefanou1, Marios E Froudarakis2

  • 1Department of Pathology, Medical School University of Ioannina Greece.

Respiratory Medicine
|June 7, 2015
PubMed
Summary
This summary is machine-generated.

This review details primary and metastatic pleural neoplasms, focusing on malignant pleural mesothelioma (MPM) and distinguishing it from other conditions. It highlights key pathological and molecular features for accurate diagnosis of pleural tumors.

Keywords:
MesotheliomaMetastatic diseaseMolecular biologyPleuraPleural effusionSolitary fibrous tumor

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Area of Science:

  • Pulmonary Medicine
  • Oncology
  • Pathology

Background:

  • Malignant pleural effusion presents diagnostic challenges in pulmonary medicine.
  • Identifying the specific etiology of pleural neoplasms is often difficult.

Purpose of the Study:

  • To outline the key pathological, immunohistochemical, and molecular characteristics of primary and metastatic pleural neoplasms.
  • To aid in the differential diagnosis of pleural tumors.

Main Methods:

  • A comprehensive review of recent scientific literature on pleural neoplasia was conducted.

Main Results:

  • Malignant pleural mesothelioma (MPM) is the most frequent primary pleural epithelial tumor, exhibiting significant histological diversity and prognostic implications.
  • Metastatic disease, particularly from lung, breast, and lymphoid malignancies, represents the most common form of pleural neoplasia.
  • Solitary fibrous tumor, the predominant primary pleural mesenchymal tumor, is identified by STAT6 overexpression, necessitating differentiation from other rare primary and metastatic pleural tumors using immunohistochemistry.

Conclusions:

  • The review provides essential pathological, immunohistochemical, and molecular features for diagnosing pleural neoplasms.
  • Differential diagnosis strategies are discussed, emphasizing the importance of distinguishing between various pleural tumor types.