Font Size

Definition of Pneumothorax

Pneumothorax: Free air in the chest outside the lung. Pneumothorax can occur spontaneously, follow a fractured rib or other trauma, occur in the wake of chest surgery, or be deliberately induced in order to collapse the lung.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012

Medical Dictionary Definitions A - Z

Search Medical Dictionary

Medical Dictionary