LAUSR

A 2-year-old boy presented to our pediatric emergency department with a 12-hour history of severe left-sided flank pain after he fell forward while attempting to kick a soccer ball, landing heavily with his torso on the ball. He had clinical signs of tension pneumothorax, including tachypnea, tachycardia, and left-sided hyperinflation. An urgent chest radiograph was interpreted as a left-sided hemopneumothorax (Figure 1), and a chest drain was inserted.