Brain tumor preoperative planning. There is a hemorrhagic lesion that measures up to approximately 4 cm in the left frontal lobe with associated surrounding vasogenic edema. There is also associated effacement of the anterior aspects of the lateral ventricles, 8 mm of midline shift to the right, and mild subfalcine herniation. Skin-based fiducial markers are present.
Limited preoperative MRI demonstrates a left frontal lobe hemorrhagic tumor with surrounding vasogenic edema. Please refer to the prior exams for additional details regarding the lesion.