 There is a small 4 x 7 mm lesion (as measured on axial T2) within the frontal lobe just above the right lateral ventricle with mixed T1 and T2 signal intensity, although primarily hypointense. It demonstrates susceptibility blooming, however has no perilesional edema or associated developmental venous anomaly. There are no other similar appearing lesions.The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There is no mass effect or midline shift. The pituitary gland is normal in size. There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear. There is no abnormal enhancement within the brain.
4 x 7 mm cavernous malformation just above the right lateral ventricle without perilesional edema or associated developmental venous anomaly.