 Approximately 1.5 x 2.1 cm of predominant hypointensity is seen in the right occipital lobe adjacent to the calcarine sulcus. Centrally there is a more heterogeneous signal appearance. The pattern is consistent with cerebral cavernous malformation and is unchanged in appearance since the previous study dated 10/23/2014. In addition, there are numerous foci of susceptibility low signal in supratentorial region, infratentorial region, and the pons, representing numerous other cavernous malformations. There is no perilesional edema and there are no associated developmental venous anomalies.The ventricles and sulci are within normal limits. There is no midline shift or mass effect. There is no extraaxial fluid collection. There is minimal right ethmoid mucosal thickening. Otherwise the visualized portions of the paranasal sinuses and mastoids/middle ears are grossly clear.
1. Cavernous malformation seen in the right occipital lobe, unchanged in shape and size since the outside MRI dated 10/22/2014.2. Numerous foci of susceptibility low signal in supratentorial region, infratentorial region, and the pons, representing numerous other cavernous malformations. 3. There is no perilesional edema or associated developmental venous anomalies.