Kidney cancer. Many of the images are degraded by patient motion artifact. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is extensive diffuse patchy cerebral white matter T2 hyperintensity bilaterally. There is also mild high T2 signal within the pons. There is diffuse cerebral volume loss. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is a right maxillary sinus retention cyst and mucosal thickening in the left maxillary sinus. There is degenerative spondylosis in the imaged portions of the upper cervical spine.
No definite intracranial metastases, although assessment is limited by the lack of contrast and patient motion. Extensive white matter abnormalities may represent chronic small vessel ischemia and/or perhaps treatment effects.