Fig. 3From: Supraclinoid internal carotid artery blister-like aneurysms: hypothesized pathogenesis and microsurgical clipping outcomesCase 14. a, b Preoperative 3D DSA demonstrated a hemispheric BLA (white arrow) and its growth accompanied with a daughter bleb (arrowhead). c This medially projecting BLA was barely visible underneath the optic nerve and the anterior clinoid process (white arrow). d The aneurysm and its translucent bleb (white arrow) originated from a partially sclerotic parent wall. e The aneurysm was obliterated. f Postoperative CTA showed 50% stenosis (white arrow) of the parent arteryBack to article page