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A: A 77-year-old-male presenting with right CN III palsy

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Presentation on theme: "A: A 77-year-old-male presenting with right CN III palsy"— Presentation transcript:

1 A: A 77-year-old-male presenting with right CN III palsy
A: A 77-year-old-male presenting with right CN III palsy. T2 MR shows a large round lesion in the right parasellar region. B: T1+C MR, shows pulsation artifact and enhancement within the lesion, confirming an aneurysm. The pulsation artifact is due to the movement of blood. C: Axial CTA shows the large aneurysm that is actually arising from the ICA terminus. On this image, the aneurysm is seen displacing the PCOM artery. The 3rd cranial nerve runs adjacent to the PCOM, and is being impinged upon by the aneurysm causing a 3rd nerve palsy. D: Frontal angiogram from right carotid artery injection demonstrates a large aneurysm sac filling with contrast confirming the findings seen on CT/MRI. E: Frontal angiogram following endovascular coil embolization of the large aneurysm with minimal residual filling of the neck of the aneurysm. Source: Chapter 2. Atraumatic Conditions of the Head and Face, The Atlas of Emergency Radiology Citation: Block J, Jordanov MI, Stack LB, Thurman R. The Atlas of Emergency Radiology; 2013 Available at: Accessed: October 09, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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