PMC4427814_01
An initial computed tomography (CT) scan revealed a large hematoma and an acute obstructive hydrocephalus in the left cerebellar hemisphere
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Plain computed tomography scans showed a large hematoma with obstructive hydrocephalus in the left cerebellar hemisphere [Figure 1], and digital subtraction angiography showed the nidus of an AVM in the left cerebellar hemisphere with the left PPHA.
Digital subtraction angiography of the left common carotid artery (left, anteroposterior view; right, lateral view) showing the nidus of an arteriovenous malformation in the left cerebellar hemisphere and the left persistent primitive hypoglossal artery (PPHA; arrowheads)
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The left PPHA is connected to the basilar artery [Figure 2].
Digital subtraction angiography of the basilar artery (BA) via the PPHA (left, anteroposterior view; right, lateral view) after the surgery revealed the residual nidus (arrow heads)
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Digital subtraction angiography of the BA via the left vertebral artery (left, anteroposterior view; right, lateral view) 5 years after the gamma-knife surgery. The residual nidus had disappeared
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