 There is a 10 mm AP x 12 mm transverse x 14 mm lesion within the anteromedial right temporal lobe which is heterogeneously yet primarily T2 hyperintense surrounded by a rim of multisequence hypointensity. This is associated with elevated susceptibility hypointensity, yet does not exhibit perilesional edema. Additionally, along its anteromedial aspect there is an associated developmental venous anomaly. There are no other lesions identified on susceptibility imaging.A large developmental venous anomaly is noted involving the right cerebellar hemisphere. There is no associated lesion demonstrating susceptibility abnormality.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 acute 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.
1.MRI findings consistent with a right temporal lobe cavernous malformation with associated developmental venous anomaly. There is no perilesional edema.2.A large developmental venous anomaly is noted involving the right cerebellar hemisphere. There is no associated lesion demonstrating susceptibility abnormality.