21 year old woman with headache. There is no evidence of intracranial hemorrhage, mass or edema. There is possible Chiari malformation, however, head positioning is not ideal to evaluate for this abnormality. Recommend MRI.The ventricles and basal cisterns are normal in size and configuration.The foramen magnum appears slightly enlarged. Otherwise, the calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
1. Possible Chiari malformation. Recommend evaluation with MRI.