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. 2017 Feb 3;96(5):e6012. doi: 10.1097/MD.0000000000006012

Figure 1.

Figure 1

Brain CT and MRI examinations showed a hypointense lesion in the right parasellar and petrous apex region (A–F). DSA and 3D-DSA images demonstrated an right saccular aneurysm (arrow) originated from the M2–M3 junction of the right MCA and a saccular aneurysm of the clinoid segment of right internal carotid artery (ICA) (G–I). Postoperative CT and 3D-CTA images (J). The diagnosis of epidermoid tumor was confirmed by pathologic examination (L). 3D-CTA images showed the morphology of the untreated aneurysm of the clinoid segment of right ICA remained stable 3 times in 5-years follow-up (M–O). Illustration demonstrating the relative position between the epidermoid tumor and the untreated aneurysm (P).