Clinical question: Preop planning for tumor resection. Signs and symptoms: Headaches. Pre and postcontrast enhanced Stealth brain MRI:Examination is limited due to extensive motion artifact in particular on post enhanced series.There is a well-demarcated enhancing and minimally necrotic tumor in the inferior-posterior aspect of right cerebellum measuring 17 x 11.5 mm in size.There is a large necrotic mass in the right posterior temporal-occipital region measuring at approximately 40 x 42 mm in transaxial dimensions with diffuse surrounding vasogenic edema and regional mass effect. The mass encases the occipital horn of left lateral ventricle.The ventricular system remains within normal size and with interval resolution of previously noted rightward midline deviation.Note should be made that this examination is performed as a surgical planning study and is not a true diagnostic test.
1.Suboptimal exam due to motion artifact.2.Tumor measuring at 17 x 11.5 mm in the right cerebellum posteriorly and a larger necrotic mass in the left posterior temporal-occipital region measuring at 40 x 42 mm.3.Stable normal size of ventricular system however with interval resolution of rightward deviation of midline since prior outside institute exam from 6-1-15.