Where is subcutaneous emphysema most commonly found?

Subcutaneous emphysema is most commonly found in the neck area due to its proximity to the respiratory system and the trachea. When air escapes from the lungs or surrounding tissues, it can enter the subcutaneous layer of the neck, leading to swelling and the sensation of crepitus upon palpation. This condition often occurs as a result of trauma, surgical procedures, or certain types of infections that allow air to be introduced into the tissues.

The other areas listed, such as the arms, chest, and legs, can also experience subcutaneous emphysema, but the neck is particularly susceptible because of the structure and function of the airways and the ease with which air can migrate from the thoracic cavity or respiratory tract into the subcutaneous layer in this region. Understanding the common sites for subcutaneous emphysema is important for identifying and managing this condition effectively.