Lung cancer. ALK+. Failed treatment with Crizotinib. Now starting new chemotherapy with baseline status to evaluate CNS status. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. No intracranial mass or mass-effect. The ventricles are within normal limits in size and configuration. Few foci of T2/FLAIR hyperintensity are seen in the bilateral subcortical and periventricular white matter which are nonspecific. Brain parenchyma is otherwise unremarkable for age.No abnormal parenchymal or meningeal enhancement. Major flow-voids are preserved. Sella 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 evidence of intracranial metastases.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.