This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cerebrovascular Diseases, Subject name: Surgery
[{'content': 'A 60 years old patient was brought to the emergency after A. NCCT head was performed and the findings are given below. All of the following are true about this condition except: \nSelect and explain. \nA. Blood collects between dura and arachnoid, B. Caused by disruption of coical veins, C. Evacuation should be done in all the cases, D. Associated with a significant primary brain injury', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The given NCCT head show Subdural Hematoma which is concavo-convex or crescentic shaped. It occurs due to rupture of Bridging Veins. Happens due to significant trauma to brain Craniotomy is done. But small SDH can be managed conservatively.', 'role': 'assistant'}]