This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
[{'content': 'MRI finding in cavernous angioma \nSelect and explain. \nA. Reticular popcorn like pattern, B. Arterial feeders, C. Well defined Indus, D. Phebectasia', 'role': 'user'}, {'content': "Answer: A \nExplanation: MRI finding of cavernous malformation (cavernous angioma or covernoma) demonstrate typical 'Popcorn like' smoothly circumscribed, well - delineated complex lesion.", 'role': 'assistant'}]