Headaches, ventriculomegaly, and neck pain with history of motor vehicle accident. Brain: There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is unchanged dilatation of the bilateral lateral ventricles, particularly in the region of the trigones with associated paucity of periventricular white matter. The third and fourth ventricles are not enlarged. The corpus callosum is intact. There is a right cerebellar hemisphere developmental venous anomaly and mild prominence of the regional sulci, indicating volume loss. There is also prominence of the extra-axial cerebrospinal fluid space medial to the right cerebellar hemisphere that measures up to 9 mm in width. The pituitary gland appears unremarkable. There is no midline shift or herniation. The major cerebral artery flow voids are intact, including a hypoplastic right vertebral artery. There is a small retention cyst within the alveolar recess of the right maxillary sinus. There is a small amount of persistent fluid within the right mastoid air cells. The skull, orbits, and scalp soft tissues are grossly unremarkable.Cervical Spine: There is degenerative spondylosis with small posterior disc-osteophyte complexes and diminished fluid signal at C5-6 and C6-7, but no significant spinal canal or neural foramen stenosis. The vertebral column alignment is anatomic. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. The spinal cord displays normal signal and morphology. The imaged cervical artery flow voids are grossly intact, including a hypoplastic right vertebral artery. The paravertebral soft tissues are unremarkable.
1. No evidence of intracranial hemorrhage, mass, or cerebral edema.2. Unchanged dilatation of the bilateral lateral ventricles, particularly in the region of the trigones with associated paucity of periventricular white matter, which is compatible with colpocephaly. 3. Right cerebellar developmental venous anomaly.4. Prominence of the cerebrospinal fluid space medial to the right cerebellar hemisphere that measures up to 9 mm in width may represent an arachnoid cyst versus an asymmetric mega cisterna magna. 5. Small amount of persistent fluid within the right mastoid air cells.6. Degenerative spondylosis with small posterior disc-osteophyte complexes at C5-6 and C6-7, but no significant spinal canal or neural foramen stenosis. 