Pneumothorax is a known and relatively common complication of CT guided lung biopsy, however tension is fortunately less common. This patient showed clinical signs which lead to this CXR.

Routinely a CXR is performed at 4 hours post biopsy at the author's institution and the patient nursed decubitus with the side of biopsy down (to reduce the occurrence of pneumothorax).

This patient however was nursed left side up due to pain.