Clinical question: History of brain metastases from an NSCLC. Signs and symptoms: None. Pre- and post enhanced brain MRI:Negative diffusion weighted images.Examination demonstrates no detectable abnormal parenchymal enhancement to suggest recurrence of disease. This is a similar observation is prior study.Patchy foci of primarily periventricular FLAIR hyperintensity similar to prior exam and likely representing post treatment changes. Possibility of mild overlapping chronic small vessel ischemic strokes cannot be entirely excluded. Tiny focus of FLAIR hyperintensity in the right posterior parietal lobe without enhancement is believed to represent a focus of gliosis.A tiny focus of extra-axial enhancement along the floor of left anterior cranial fossa is a nonspecific finding and demonstrate no definitive change since immediate prior exam from 2-20-15.Unremarkable calvarium and orbits including axial fat sat post enhanced series. Mild chronic pansinusitis without significant change since prior exam.
1.Negative diffusion weighted images.2.No evidence of residual or recurrence of tumor in the brain parenchyma or the leptomeninges since prior exam.3.Stable tiny foci of extra-axial enhancement along the floor of the left anterior cranial fossa.4.Primarily periventricular foci of FLAIR hyperintensity likely representing posttreatment changes. Overlapping chronic small vessel ischemic strokes cannot be entirely excluded.