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Neuroradiology board review. This lecture is geared towards the ABR core exam for residents, but it would be useful for review for the ABR certifying exam or certificate of added qualification (CAQ) exam for neuroradiology. This case shows a CT with hyperdensity ventral to the pons and midbrain consistent with hemorrhage. Further imaging, including MRI and CT angiogram, were normal The diagnosis is: benign perimesencephalic hemorrhage This is a relatively benign form of subarachnoid hemorrhage of unknown
