Pneumoscrotum complicating percutaneous liver biopsy.

Pneumoscrotum developed after percutaneous liver biopsy in a 5-yr-old boy. Fifteen minutes after the procedure an enlargement of the right scrotum was noted. X-rays revealed a very small right-sided pneumothorax, subcutaneous air dissecting along the right chest and right abdominal walls and a confluent pocket of air in the right scrotum. We suggest that the air from the pleural cavity penetrated the superficial fascia in the upper right abdomen and dissected beneath the deep membranous layer into the scrotum.