Fig. 1.

Series of patient's brain MRI showing the metastatic tumors in different locations. A: Initial sagittal gadolinium-enhanced brain MR image (Dec. 2005) showing a well enhanced large epidural tumor compressing the superior sagittal sinus, with a small tentorial meningioma and another well enhanced 4th ventricle floor mass. B: Axial gadolinium-enhanced brain MR image (Jan. 2008) showing a doubling of the 4th ventricular tumor and increased peritumoral edema. C: Post-operative axial gadolinium-enhanced brain MR image showing gross total resection of the periventricular tumor. D: Follow-up brain MR image (May 2009) showing recurrence of the resected vertex mass.