Metastatic carcinoma of the lung status post craniotomy, adjuvant SRS, and most recently carbo/taxol. There are postoperative findings related to right suboccipital craniotomy with persistent subcentimeter nodular and linear areas of enhancement along the margins of the resection cavity, which overall appear to have slightly diminished. There is no evidence of acute infarction. The ventricles are unchanged in size and configuration. There is a new nodular areas of enhancement in the right posterior upper neck paraspinal soft tissues that measure up to 19 mm. There is a left maxillary sinus retention cyst.
1. Postoperative findings related to right suboccipital craniotomy with persistent areas of enhancement along the margins of the right cerebellar hemisphere resection cavity that may represent treatment effects, although small amounts of residual tumor cannot be entirely excluded.2. New nodular areas of enhancement in the right posterior upper neck paraspinal soft tissues that measure up to 19 mm may represent tumor deposits versus treatment effects, such as organizing hematomas.