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': 'Cavernous hemangioma is characterized by: \nSelect and explain. \nA. Reticulated popcorn like configuration, B. Well defined nidus, C. Well defined aerial feeder, D. Phlebectasis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Reticulated popcorn like configuration T2 gradient echo MRI is the investigation of choice for identification of cavernous angioma (cavernous hemangioma or cavernoma), which typically demonstrates a mass characterized as popcorn in appearance (mulberry shaped lesion)Q.', 'role': 'assistant'}]