PMC5350074_01
Right lateral skull base dissection. The large aberrant loop of the internal carotid artery is shown (horizontal arrow) bulging into the suboccipital region inferior to the inferior capitis oblique muscle (vertical arrow).
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PMC5350074_01_10-1055-s-0037-1600136-i160057-1.jpg
FI160057-1
During the routine dissection of the right suboccipital region in a adult male cadaver as part of a skull base course, a large 1-cm-diameter bulge was noted just inferior to the suboccipital triangle (i.e., just inferior to the inferior capitis oblique muscle) (Fig. 1).