Clinical question: Evaluate left-sided numbness/weakness. Signs and symptoms: Left-sided numbness and weakness. Nonenhanced head CT:There is no detectable intracranial hemorrhage, edema, mass effect, midline shift or hydrocephalus. The cortical sulci, ventricular system, CSF cisterns and gray -- white matter differentiation is within normal. CT is insensitive for detection of early ischemic stroke. If clinical concern persists recommend MRI examination.Calvarium, paranasal sinuses, mastoid air cells and limited views of the orbits are unremarkable
Negative head CT.