Female, 48 years old, with metastatic breast cancer to the brain, status post tumor resection. Findings are seen compatible with craniotomy and resection of a left frontal lobe intraparenchymal tumor. The resection cavity contains a blood fluid level and a small amount of air. Thin enhancement is seen along the margins of the resection cavity. No areas of residual nodular or masslike enhancement are detected. Substantial vasogenic edema surrounding the tumor bed is unchanged.Approximately 10 additional enhancing lesions are redemonstrated. These include a 31 mm centrally cystic/hemorrhagic tumor in the left temporal lobe, a nearly solid tumor in the right posterior medial temporal lobe measuring 24 mm, multiple smaller lesions in the cerebellum, and scattered punctate cortical foci. All appear similar to the preoperative examination.A nonenhancing T2 hypointense extra-axial mass is seen along the left cranial vertex, just posterior to the resection cavity, compatible with a calcified meningioma. Generalized mass effect is unchanged with a 5 mm midline shift to the right at the level of the septum pellucidum. Slight ventricular effacement is seen from adjacent edema. None of the ventricles is dilated.
1.Expected findings are seen status post resection of a left frontal lobe parenchymal metastasis. No definite evidence of residual tumor is seen.2.Approximately 10 additional enhancing intracranial lesions are unchanged.