Clinical question: 60-year-old with history of lung cancer and headache. Signs and symptoms: As above. Pre-and post-enhanced brain MRI:No diffusion weighted abnormalities.There is degradation of images due to motion artifact. This precludes precise assessment for detection of very subtle abnormal enhancement.Within this limitation there is normal anatomical development and morphology of brain and with normal signal intensity on all MRI sequences.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination.There is no detectable abnormal parenchymal or leptomeningeal enhancement to suggest metastatic disease. Calvarium and soft tissues of the scalp are unremarkable and without abnormal enhancement.Unremarkable images through the orbits and including axial fat sat post enhanced series.All paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal pattern.
Unremarkable pre-and post enhanced brain MRI.