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Computed tomography (CT) of the temporal bone showing bony erosion consistent with osteoradionecrosis (ORN) and concerning for a vascular abnormality of the petrous internal carotid artery (ICA). (A) Axial: Solid arrow: eroded posterior wall of temporomandibular joint (TMJ). Clear arrow: pseudoaneurysm. Clear arrowhead: eroded carotid canal. (B) Coronal: Clear arrow: pseudoaneurysm.
