Cavernous malformation status post recent resection. There are recent postoperative findings related to left temporal craniotomy and transtentorial presigmoid resection of a left pontine cavernous malformation. There is an expected amount of extra-axial fluid in the surgical bed and diffuse dural enhancement. There is circumferential susceptibility effect along the margins of the left pons resection cavity. There is decreased mass effect upon the fourth ventricle and cerebral aqueduct, with resultant decreased dilatation of third and lateral ventricles. There is vasogenic edema in the posterior pons and superior left cerebellar hemisphere, but no evidence of territorial infarct. There is fluid and mucosal thickening in the right sphenoid sinus.
Recent postoperative findings related to left pontine cavernous malformation with interval resolution of the obstructive hydrocephalus. 