Right brain tumor with left sided weakness: preoperative planning for biopsy. There is a dominant heterogeneous mass in the right perirolandic region that measures up to approximately 4 cm. There are also several subcentimeter lesions adjacent to the mass. The ventricles are normal in size and configuration. There is no midline shift. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable. Fiducial markers are present.
Preoperative planning MRI shows a dominant heterogeneous mass in the right perirolandic region that measures up to approximately 4 cm and several subcentimeter satellite lesions.