10 years Male (DOB:12/29/2005)Reason: chronic daily headaches, increased with valsalva. Evaluate for malformation of craniocervical junction History: headachesPROVIDER/ATTENDING NAME: CAROL J. MACMILLAN CAROL J. MACMILLAN The CSF spaces are appropriate for the patient's stated age with no midline shift. The cerebellar tonsils are rounded inferior tip seen extend approximately 3 mm below the level of the foramen magnum. There is biphasic CSF flow at the level of the foramen magnum. There is no ventriculomegaly appreciated.No abnormal mass lesions are appreciated intracranially. No intracranial hemorrhage is identified. No edema is identified within the brain parenchyma.Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
The cerebellar tonsils are low lying. There does not appear to be significant spinal fluid obstruction.