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URL of this page: //medlineplus.gov/ency/imagepages/9798.htm
Pulmonary embolus
Overview
An embolus is a blockage of an artery in the lungs by fat, air, tumor tissue, or blood clot.
Review Date 10/21/2025
Updated by: Warren Brenner, MD, Oncologist, Lynn Cancer Institute, Boca Raton, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.