PMC4844662_01
Catheter based angiography showed a 3 mm aneurysm from the branch of the PICA, located almost in the midline near the vermis (pointed by the arrow).
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This was thought to be secondary to the presence of a thrombosed AVM and was the possible source of the haemorrhage [Fig. 1, Fig. 2]. This was co-related with Fig. 1.
Sagittal view on CT scan: Presence of suspected aneurysm. Orange arrow points to the aneurysm.
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Her cerebral angiogram was repeated which showed a 3 mm aneurysm in the anterior inferior cerebellar artery (AICA) along with the absence of posterior inferior cerebellar arteries (PICA) bilaterally [Fig. 3, Fig. 4].
CT angiogram (post-operative) shows absence of any aneurysm in posterior circulation.
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Her angiogram was repeated which showed complete excision of the aneurysm [Fig. 5].