History of lung cancer with solitary brain lesion; please evaluate for radiosurgery treatment planning. There is a left posterior frontal lobe heterogeneously enhancing mass that measures up to 27 mm. There is extensive surrounding vasogenic edema with effacement of the posterior left lateral ventricle and approximately 5 mm of midline shift to the right. No other intracranial tumors are apparent. The skull and orbits appear to be grossly intact.
Pre-treatment planning MRI demonstrates a posterior left frontal lobe tumor that measures up to 27 mm with extensive surrounding vasogenic edema.