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AJNR - American Journal of Neuroradiology

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Spontaneous Resolution of Posttraumatic Middle Meningeal Artery Pseudoaneurysm

A. Srinivasan^a, H. Lesiuk^b and M. Goyal^a

^a Department of Diagnostic Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada
^b Department of Neurosurgery, The Ottawa Hospital, Ottawa, Ontario, Canada

View larger version (75K): [in a new window]   Fig 1. CT angiogram of the brain in axial plane (A) with coronal maximum intensity projection (MIP) reconstructions (B), done at the initial time of presentation, reveals a pseudoaneurysm (long white arrow) arising from the left middle meningeal artery (MMA) (short white arrows). Left temporal epidural hematoma is also visualized (black arrows).

View larger version (62K): [in a new window]   Fig 2. CT angiogram of the brain in axial plane (A) with coronal maximum intensity projection (MIP) reconstructions (B), performed 2 weeks after the acute event, shows resolution of the previously seen pseudoaneurysm arising from the middle meningeal artery (MMA) (arrow).

View larger version (102K): [in a new window]   Fig 3. Superselective left middle meningeal artery (MMA) angiogram in lateral projection shows normal filling of the MMA and its anterior and posterior divisions (arrows) with no pseudoaneurysm demonstrated.