Clinical question: Mass signs and symptoms: Headaches Non-enhanced CT of brain:There is no evidence of intracranial hemorrhage, edema, mass, mass effect, midline shift or hydrocephalus.Cortical sulci and ventricular system are within normal range for patient's stated age of 43. There is subtle crowding of the cerebellar tonsils at the level of foramen magnum concerning for mild ectopia of the cerebellar tonsils. Please correlate with history and follow-up with an MRI.Calvarium is intact. Limited view of paranasal sinuses and mastoid air cells are unremarkable.
1.No evidence of acute intracranial process.2.Minimally ectopic cerebellar tonsils.