Dense Basilar Artery Sign
Abstract
A 65-year-old man presented with acute loss of consciousness of two hours duration. Non- contrast CT scan of brain showed “dense basilar artery sign. Basilar artery thrombosis with posterior circulation was suspected and MRI brain with MR angiogram (MRA) was done. MRA showed absence of flow void in basilar artery (Figure 2) and MRI showed diffusion restriction in brainstem and cerebellum (Figure 3), confirming basilar artery thrombosis with posterior circulation stroke. Patient died of extensive brainstem infarct, five hours after admission.
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