52-year-old male with metastatic lung cancer, follow-up brain METs. Well demarcated T2 hyperintense lesions in the left inferior cerebellar hemisphere, gray white matter junction of the left frontal lobe, right parietal lobe, and right posterior occipital lobe are not significantly changed in size or signal characteristics. The reference left inferior cerebellar hemisphere lesion measures 7 x 9 mm and previously measured 7 x 9 mm (image 7, series 701). There is some intrinsic T1 hyperintensity at the site of these lesions but no significant enhancement. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. The ventricles are within normal limits in size and configuration. Major flow-voids are preservedSella and orbits are grossly within normal limits. Paranasal sinuses and mastoid cells are clear. Bone marrow signal and extracranial soft tissues are within normal limits.
No significant interval change in the size and signal characteristics of the cerebellar and hemispheric lesions compared with the prior exam. No new lesions identified.