Clinical question: Evaluate for bleed, mass effect. Signs and symptoms: Mental status changes Non-enhanced MRI of brain:No evidence of intracranial hemorrhage, edema, mass effect, midline shift or hydrocephalus. Cortical sulci, ventricular system and all CSF cisterns as well as gray -- white matter differentiation is unremarkable.Calvarium, mastoid air cells, middle ear cavities and limited view of paranasal sinuses are negative.
Negative nonenhanced CT of brain and calvarium.