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Pleural Effusion I: Introduction

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.
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Pleural Effusion II: Symptoms and Management

Pleural Effusion II: Symptoms and Management

Pleural Effusion Overview
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Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion

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Related Experiment Video

Updated: Feb 14, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Published on: November 10, 2023

Malignant Pleural Effusion: From Diagnostics to Therapeutics.

Rachelle Asciak¹, Najib M Rahman¹

¹Respiratory Medicine, Oxford University Hospitals, Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, Great Britain.

Clinics in Chest Medicine

|February 14, 2018

Summary

Malignant pleural effusion, a common cancer complication, presents with breathing difficulty. Indwelling pleural catheters are now a preferred first-line treatment for recurrent effusions, offering palliative care.

Keywords:

Dyspnea Indwelling pleural catheter Malignant pleural effusion Malignant pleural effusion management Pleural fluid cytology

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Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines

Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines

Published on: April 21, 2022

Area of Science:

Oncology
Pulmonology
Medical Diagnostics

Background:

Malignant pleural effusion (MPE) is a frequent complication of advanced cancer, associated with a poor prognosis.
Symptoms typically include dyspnea and large unilateral pleural effusions.
Accurate diagnosis and effective management are crucial for patient quality of life.

Purpose of the Study:

To review the diagnostic modalities for malignant pleural effusion.
To discuss the current palliative management strategies for recurrent symptomatic MPE.
To evaluate the evolving role of indwelling pleural catheters in first-line treatment.

Main Methods:

Review of diagnostic imaging techniques, including thoracic computed tomography (CT) and ultrasound.
Assessment of pleural fluid cytology and pleural biopsy for diagnosis.
Analysis of treatment outcomes for chest drain insertion, talc pleurodesis, and indwelling pleural catheters.

Main Results:

Thoracic CT and ultrasound aid in differentiating malignant from benign effusions.
Pleural fluid cytology is diagnostic in approximately 60% of cases; pleural biopsies are useful for cytology-negative cases.
Indwelling pleural catheters are emerging as an acceptable first-line treatment for recurrent symptomatic MPE, previously reserved for specific scenarios.

Conclusions:

Malignant pleural effusion requires accurate diagnosis through imaging and cytology/biopsy.
Management remains palliative, focusing on symptom relief.
Indwelling pleural catheters represent a shift towards a more patient-centered, potentially less invasive, first-line approach for recurrent malignant pleural effusion.