Angiogram of Clinoidal Aneurysm and Surgical Correlate. a, Digital right carotid angiogram of a paraclinoid aneurysm projecting superiorly (frontal view). b, Lateral view. c, Intraoperative view. As the aneurysm projects superiorly, the orbital roof and the anterior clinoid process have not been removed. d, The aneurysm has been clipped. (Images courtesy of E de Oliveira)