18-year-old male patient status post cavernous malformation resection. Patient refused contrast during examination. There are postsurgical changes from a right frontal craniotomy for resection of right frontal vascular lesion/cavernous malformation. There is a surgical tract extending through the frontal lobe to the right periventricular region areas of signal void and susceptibility artifact, compatible air and blood product, as seen on prior CT. There is restrict diffusion along the surgical tract compatible with cytotoxic edema. There is a small amount of residual pneumocephalus anterior to the right frontal lobe. Again seen more superiorly is a right frontal lobe developmental venous anomaly coursing cranially into a curvilinear vascular malformation within the right superior frontal gyrus measuring approximately 9 x 6 mm, which on prior demonstrates significant enhancement which would be unusual for a cavernoma. Blooming artifact is again noted on susceptibility. Remainder of the brain parenchyma appears unremarkable. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The right maxillary sinus, anterior ethmoids and right frontal sinus remain opacified.
1.Expected postoperative findings related to resection of right frontal lobe vascular lesion/possible cavernous malformation.2.Stable vascular malformation in the right superior frontal gyrus with chronic hemosiderin deposition. Catheter angiogram can better assess for arteriovenous shunting.3.Persistent right paranasal sinus disease.