23-year-old male with preoperative planning for occipital lesion biopsy and questionable lymphoma. Redemonstrated is an intraparenchymal enhancing lesion in the left parietal lobe, measuring up to 28 x 24 x 26 mm in the anteroposterior, transverse, and craniocaudal dimensions, respectively. There is extensive surrounding vasogenic edema. There are no additional parenchymal lesions. There is local mass effect without midline shift or herniation. The ventricles are unchanged in appearance. The calvarium is intact. There is a retention cyst in the right maxillary sinus. There is also mild right mastoid air cell opacification. There are skin fiducial markers.
Preoperative planning MRI demonstrates a left parietal mass that may represent lymphoma with surrounding vasogenic edema.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.