Cerebral cavernous malformation. There is a lesion with extensive susceptibility effect in the right peritrigonal white matter, which measures up to approximately 10 mm. There is no surrounding vasogenic edema, but there appears to be a small associated developmental venous anomaly. 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 artery flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Right peritrigonal white matter cavernous malformation measuring up to approximately 10 mm, with what appears to be a small associated developmental venous anomaly.