What are pleural plaques?

Pleural plaques are localized, often hard lesions that form on the pleura, which is the membrane lining the lungs and the thoracic cavity. These plaques are primarily associated with asbestos exposure, and their formation is a result of the body's response to asbestos fibers that become lodged in the pleural tissue over time. They indicate a history of asbestos exposure, but importantly, pleural plaques themselves are usually asymptomatic and do not typically interfere with lung function.

This classification helps differentiate them from other conditions that may arise in relation to asbestos, such as pleural effusions (fluid around the lungs) or more severe diseases like asbestosis or lung cancers. Understanding pleural plaques is crucial for building inspectors and health professionals because their presence can serve as a marker for potential asbestos-related health risks.