<prompt> A rugby player hit his head on the post whilst involved in a tackle. He was unconscious for 5 min but regained full consciousness and sat on the sideline until the end of the game. He was then noted to be drowsy and over the past 30 min became confused and no longer obeyed commands. Most likely diagnosis is:Extradural hematomaSubdural hematomaSubarachnoid hematomaCerebral edema  <response>: Ans. A. Extradural hematomaRef: Review of Forensic Medicine toxicology; Gautum Biswas; 2nd edition; Pg - 482The history suggests LUCID INTERVAL, which is a feature seen in extradural hemorrhage.Head Trauma - Unconsciousness, Consciousness finally unconsciousness, death 