Section Editor: Sandy Cheng-Yu Chen, M.D.
Taipei Medical University Hospital, Taipei, Taiwan
Figure Caption
Horner’s syndrome (ptosis and miosis; arrows in A) and neck pain are the classic nonischemic signs of carotid artery dissection. Dissection of the cervical brain-supplying arteries are a common cause of stroke in young and middle-aged patients. While angiographic techniques (DSA, MRA, CTA) can demonstrate the typical “flame-shaped tapering” of the lumen (arrow in B), conventional imaging can demonstrate the hyperdense crescent-shaped mural hematoma (arrow in C) at the skull base. Anticoagulation is the therapy of choice. Interventional recanalization can be helpful if the vessel is occluded and there is hemodynamic compromise.