<prompt> Digital subtraction Angiography of a 35 year old smoker is given. What is the possible diagnosis?AtherosclerosisBuergers diseaseTakayasus AeritisKawasakis Disease  <response>: 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 