 MRI BRAIN:There is high T2/FLAIR signal in the left temporal/occipital lobe without restricted diffusion representing vasogenic edema with laterally adjacent tortuous vascular flow voids. The flow void is enhancing with a tangle of vessels lumenal dark susceptibility signal, representing the patient's known AVM, which is unchanged in size since the previous study by MRI appearance. There are no other T2/FLAIR signal abnormalities. No other enhancing lesions. There is no diffusion abnormality suggest the presence of acute ischemia.MRA BRAIN:There is a tangled vascular nidus of the left MCA, with a prominent draining vein, representing the patient's known AVM, unchanged in size since previous study.
Unchanged left temporal/occipital AVM by MRI appearance. Since the prior study, there is no associated vasogenic edema, representing a treatment response.