---
title: "pleural effusion"
description: "Pleural effusion is an abnormal, excessive collection of this fluid. There are two types of pleural effusion: Transudative pleural effusion is caused by fluid leaking into the pleural space. This is..."
url: https://mdpathyqa.com/question-tag/pleural-effusion/
type: term
taxonomy: question_tags
taxonomy_label: "Question Tags"
count: 4
lang: en
---

# pleural effusion

Pleural effusion is **an abnormal, excessive collection of this fluid**. There are two types of pleural effusion: Transudative pleural effusion is caused by fluid leaking into the pleural space. This is from increased pressure in the blood vessels or a low blood protein count. Heart failure is the most common cause.

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