This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular Radiology, Subject name: Radiology
[{'content': 'Digital subtraction Angiography of a 35 year old smoker is given. What is the possible diagnosis? \nSelect and explain. \nA. Atherosclerosis, B. Buergers disease, C. Takayasus Aeritis, D. Kawasakis Disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *Corkscrew appearance of vessels on Angiography- It is the angiographic hallmark of Buergers disease. *Represents collaterals around areas of occlusion *Most often seen at wrist & ankles in more than one limb , sparing the larger vessels. Buergers Disease-Cork Screw Appearance on Angiography', 'role': 'assistant'}]