Reason: polycytic astrocytoma , brain tumor, resection, yearly follow up for growth or changes History: yearly follow up brain tumor Redemonstrated is a left parietal lobe resection cavity, which has not substantially changed. Minimal T2/FLAIR hyperintensity surrounding the resection cavity similar to the prior exam. No suspicious enhancement is seen within or around the resection cavity.No acute intracranial hemorrhage is identified. No abnormal diffusion restriction. No new mass or midline shift. No extra-axial fluid collections. Stable ex vacuo dilatation of the atrium and occipital horn of the left lateral ventricle. Gray-white matter differentiation is preserved. Scattered ethmoid air cell and maxillary mild mucosal thickening is noted. The imaged orbits are intact. Postsurgical changes of left parietal craniotomy.
Stable postsurgical change without evidence of residual or recurrent tumor. 