Clinical question: Status post tumor resection. Signs and symptoms: Headache. Pre and postcontrast enhanced brain MRI:There is a thin right hemispheric subdural measuring maximum of 4.2 mm in right anterior temporal and approximately 2.5 mm in the right occipital. There is no appreciable mass effect with this finding.As was noted on prior head CT examinations there is a hematoma in the right anterior frontal lobe and hemorrhage within the surgical cavity with extensive surrounding vasogenic edema. Hematoma measures approximately at 25 x 33 mm in transaxial dimensions. Constellation of findings results in subtle mass effect on the right frontal horn of lateral ventricle and trace the radiation of midline without significant change since prior head CT examination on 5-21-30. On post enhanced images there is no detectable abnormal enhancement at this site to suggest residual meningioma. There is a surgical drain in place at the surgical site in the right frontal. There is also a small extra-axial hemorrhage in the left anterior frontal measuring maximum of 8 mm in thickness without appreciable mass effect on the parenchyma. Minimal postsurgical air is present.Ventricular system remain within normal size and unchanged since prior exam.A previously known heavily calcified right high convexity posterior parietal meningioma is again identified without change. Other smaller meningiomas however are not as well-visualized on post enhanced imaging however are detected on nonenhanced series..
1.A thin right hemispheric subdural measuring maximum of 4.2 mm in anterior temporal and 2.5 mm in right occipital without appreciable mass effect.2.Parenchymal hemorrhage and hemorrhage within the right frontal surgical cavity, surrounding vasogenic edema and associated mass effect/trace midline shift to the left remains similar to preoperative study.