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Pneumothorax
(Collapsed Lung)

Medical Revising Authors and Editor: George Schiffman, MD, and Melissa Conrad Stoppler, MD

What is a pneumothorax?

A pneumothorax is a collection of free air in the chest outside the lung that causes the lung to collapse.

What are the types of pneumothorax?

A spontaneous pneumothorax, also referred to as a primary pneumothorax, occurs in the absence of a traumatic injury to the chest or a known lung disease. A secondary (also termed complicated) pneumothorax occurs as a result of an underlying condition.

Picture of Pneumothorax (Collapsed Lung)

What causes a pneumothorax?

Spontaneous pneumothorax is caused by a rupture of a cyst or a small sac (bleb) on the surface of the lung. Pneumothorax may also occur following an injury to the chest wall such as a fractured rib, any penetrating injury (gun shot or stabbing), surgical invasion of the chest, or may be deliberately induced in order to collapse the lung. A pneumothorax can also develop as a result of underlying lung diseases, including cystic fibrosis, chronic obstructive pulmonary disease (COPD), lung cancer, asthma, and infections of the lungs.




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Chest Pain »

Introduction

Chest pain is one of the most common complaints that will bring a patient to the Emergency Department. Seeking immediate care may be lifesaving, and considerable public education has been undertaken to get patients to access medical care when chest pain strikes. While the patient may be worried about a heart attack, there are many other causes of pain in the chest that the healthcare provider will need to consider. Some diagnoses are life threatening, while others are less dangerous.

Deciding the cause of chest pain is sometimes very difficult and may require blood tests, x-rays, CT scans and other tests to sort out the diagnosis. Often though, a careful history taken by the healthcare provider may be all that is needed to find the answer.

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The source of pain may arise from a variety of potential sources:

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