Clinical question: Rule out stroke. Signs and symptoms: Patient with hemoglobin SC, severe headache. Nonenhanced head CT:No detectable acute intracranial findings. CT however is insensitive for early detection of acute nonhemorrhagic ischemic strokes.Unremarkable cortical sulci, ventricular system, CSF cisterns and gray -- white matter differentiation.If concern for stroke is high recommend follow up with an MRI examination.Calvarium and soft tissues of the scalp are unremarkable.Limited images through the orbits, paranasal sinuses and mastoid air cells are unremarkable.Prominence of adenoids is noted.
Negative nonenhanced head CT.