42-year-old female with a known cavernoma. Please evaluate for CCMs. There is a 4 x 6 mm T1 and T2 hypointense lesion in the left pons that demonstrates susceptibility abnormality. There is some peripheral enhancement which enhances faintly in the periphery surrounding the central hypointensity indicating an anomalous draining vein. These findings are unchanged compared to the prior exam and are compatible with a small cavernous malformation.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. There is mild right greater than left maxillary sinus and scattered ethmoid air cell mucosal thickening. The orbits, skull, and scalp soft tissues are grossly unremarkable.
Small cavernous malformation of the left pons and adjacent small anomalous draining vein without significant change compared to the brain MRI from 2/19/2016. There are no new enhancing lesions in the brain.