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Subcutaneous emphysema

Contents of this page:

Illustrations

Skin layers
Skin layers

Alternative Names    Return to top

Crepitus; Subcutaneous air; Tissue emphysema

Definition    Return to top

Subcutaneous emphysema occurs when air gets into tissues under the skin covering the chest wall or neck.

Considerations    Return to top

Subcutaneous emphysema can often be seen as a smooth bulging of the skin. When a health care provider feels (palpates) the skin, it produces an unusual crackling sensation as the gas is pushed through the tissue.

Causes    Return to top

This is a rare condition. When it does occur, possible causes include:

This condition can happen due to:

Air can also be found in between skin layers on the arms and legs or torso during certain infections, including gas gangrene.

When to Contact a Medical Professional    Return to top

Most of the conditions that cause subcutaneous emphysema are very severe. Sometimes a hospital stay is needed. Medical staff should already be involved in most cases.

Update Date: 10/13/2008

Updated by: John E. Duldner, Jr., MD, MS, Assistant Professor of Emergency Medicine, Director of Research, Department of Emergency Medicine, Akron General Medical Center and Northeastern Ohio Universities College of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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