 There are unchanged postoperative findings related to partial left temporal lobectomy. There is no evidence of acute intracranial hemorrhage, mass, or acute infarct. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There is mild paranasal sinus mucosal thickening. There is a well-defined T2 hyperintense non-enhancing lesion centered within the left pterygoid process that measures up to 18 mm and has slowly increased in size compared with the April 2010 exam at which time it measured 10 mm. In retrospect, it was present but only partially imaged on a CT head dated 2/23/2007.
1.Unchanged postoperative findings related to partial left temporal lobectomy. No intracranial mass or mass-effect. No evidence of infarct, hemorrhage, or hydrocephalus.2.Non-enhancing lesion which appears to be centered within the left pterygoid process is not well evaluated on the current or prior studies but favored to represent a benign osseous lesion. Suggest further characterization with sinus CT. 