This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gram-Positive Infections - Corynebacterial Infections, Subject name: Forensic Medicine
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: 
Select and explain. 
A. Extradural hematoma, B. Subdural hematoma, C. Subarachnoid hematoma, D. Cerebral edema
A: Extradural hematoma
Answer: A: Extradural hematoma 
Explanation: Ans. (A). Extradural hematoma(Ref: Review of Forensic Medicine & toxicology; Gautum Biswas; 2nd edition; Pg - 482)The history suggests LUCID INTERVAL, which is a feature seen in extradural hemorrhage.Head Trauma - Unconsciousness, Consciousness & finally unconsciousness, death