This is a ball-valve effect involving the left mainstem bronchus, and is characteristic of an inhaled foreign body. Note that on expiration the right lung collapses normally, but the left lung remains inflated, causing a deviation of the mediastinum.
This is a ball-valve effect involving the left mainstem bronchus, and is characteristic of an inhaled foreign body. Note that on expiration the right lung collapses normally, but the left lung remains inflated, causing a deviation of the mediastinum.
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