History A 17-year-old boy is brought to the emergency department. He had been playing hockey and was struck on the head by a hockey ball approximately half an hour before admission. He lost consciousness briefly, but was able to walk from the scene. He is mildly confused, complaining of a severe headache, and has vomited four times. Examination He has a pulse rate of 63/min and a blood pressure of 170/110 mmHg.

During the course of the examination, he becomes drowsy and his GCS drops to 3/15. He has a ‘boggy swelling’ over the right temple. His right pupil is dilated. Image: A CT scan of the head What is the likely diagnosis? *This image based case is from Docplexus editorial team for educative purpose only Source: 100 cases in surgery Stay connected, the answer will be posted in next 48 h!