Known cavernoma: surveillance. There is a mass with circumferential susceptibility effect and internal high T1 and T2 signal components that measures 15 mm in diameter in the right inferior frontal lobe, adjacent to the basal ganglia. There are a few scattered nonspecific foci of T2 hyperintensity in the cerebral white matter. There is no evidence of vasogenic edema or 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 orbits, skull, and scalp soft tissues are grossly unremarkable. There are bilateral small maxillary sinus retention cysts.
A right inferior frontal lobe cavernous malformation measures 15 mm.