Perforating and ophthalmic artery variants from the anterior cerebral artery: Two case reports

Figure 1 Perforating artery (black arrow) originated from anterior superior wall of A1 segment of anterior cerebral artery (yellow arrow), with the dura mater (orange arrow) moved forward. The small branches and the dura mater traffic were folded back into the precribrum. Blue arrow indicates the optic nerve on the same side.