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Fig 2. A 77-year-old woman with SAH and a false-positive-aneurysm finding on CTA. A, Axial CTA-MMBE image shows near complete bone removal as only the auditory ossicles (arrowheads) are not masked. B and C, Axial MIP and coronal MIP with small bone remnants of auditory ossicles (arrowheads), which do not hinder evaluation. D, Coronal MIP of a volume of interest with a small bulge of the right ICA interpreted as a small aneurysm (arrow). This infundibulum was mistaken for an aneurysm because the posterior communicating artery (PcomA) is not visible. E and F, DSA and 3DRA show the infundibulum of small PcomA (arrow).
