 BRAIN: There are multiple foci of susceptibility effect within the midbrain and pons with an associated developmental venous anomaly. There are additional dominant foci of susceptibility effect within the right frontal and left occipital white matter and innumerable punctate foci of susceptibility effect throughout the brain. These are all unchanged compared with the prior exam without surrounding edema to suggest recent hemorrhage. There is no evidence of acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull and scalp soft tissues are unremarkable. There is mild mucosal thickening within the sphenoid sinuses.MRA HEAD: The intracranial internal carotid arteries are normal in course and caliber. There is an unchanged 2 mm outpouching at the proximal A2 segment of the right anterior cerebral artery. The middle and anterior cerebral arteries are otherwise unremarkable. The vertebral arteries, basilar artery, and posterior cerebral arteries are normal in course and caliber. There is no evidence of flow-limiting stenosis or aneurysm.
1.Innumerable unchanged cavernous malformations most prominent in the pons where there is an associated developmental venous anomaly. 2.Unchanged 2 mm outpouching at the A2 segment of the right anterior cerebral artery may represent an aneurysm or an infundibulum. 