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Teaching NeuroImages: Severe vasospasm in traumatic brain injury

A 45-year-old man had a severe traumatic brain injury (TBI) with multicompartmental hemorrhages (figure 1). He was initially noted to be awake and following commands with his right side. Two weeks later, his examination deteriorated to coma with flaccid quadriplegia. Initial workup, including EEG, was unrevealing. MRI brain showed new multiterritorial infarcts (figure 1); a catheter-based angiogram confirmed severe vasospasm in several large vessels (figure 2).