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. Author manuscript; available in PMC: 2013 Jun 14.
Published in final edited form as: J Neuroophthalmol. 2011 Jun;31(2):103–109. doi: 10.1097/WNO.0b013e3181f8d985

Figure 1.

Figure 1

Figure 1

Figure 1

Figure 1

A: Non-contrast head CT showing subarachnoid hemorrhage (arrow) in a patient with an isolated painful right third nerve palsy (Group I).

B: CTA demonstrating a left posterior communicating artery aneurysm (arrow) in a patient from Group II.

C: (top) MRA reformatted image from a patient in Group III showing a posterior communicating artery aneurysm (arrow); (bottom) MRA source image from the same patient showing the aneurysm (arrow).