Legend Axial T2W, FLAIR, and T1W images demonstrate a mass in the left frontal lobe with surrounding vasogenic edema and mass effect.

Legend Axial and coronal gadolinium enhanced imaging demonstrates solid and ring enhancing masses in the left cerebral hemisphere and left cerebellar hemisphere. Additional chest CT shows multiple masses in the right upper lung.

Legend Time-signal intensity curves demonstrate persistent decrease in signal intensity in the region of the mass relative to normal right brain. There is locally increased cerebral blood volume and surrounding decreased cerebral blood volume. Key words: mri perfusion tumor neoplasia

Brain Diagnosis: Lung carcinoma metastasis