Metastatic lung cancer to brain status post right frontal tumor resection: evaluation of cavity and presence of additional lesions, referred for radiosurgery planning. There are postoperative findings related to right frontal lobe tumor with diffuse presumed marginal enhancement that is more nodular along the anterior and inferior aspects of the surgical cavity. There is susceptibility effect within the resection cavity, which likely represents blood products. There is also circumferential confluent high T2 signal surrounding the surgical cavity, which may represent vasogenic edema, and mild mass effect upon the anterior portions of the lateral ventricles. There are a few scattered punctate foci of cerebral white matter T2 hyperintensity. There is a 10 mm diameter cystic pineal gland. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable. There is fluid and mucosal thickening in the left maxillary sinus.
1. Postoperative findings related to right frontal lobe tumor with diffuse presumed enhancement that is more nodular along the anterior and inferior aspects of the surgical cavity, which may represent residual tumor. However, assessment is limited due to the lack of non-contrast T1-weighted sequences for comparison.2. Findings suggestive of acute left maxillary sinusitis.