57 year old female patient with left weakness and left temporoparietal lesion. Follow up examination status post craniotomy. Interval post-surgical changes of a temporoparietal craniotomy for resection of a mass in the right temporoparietal lobe with swelling and edema of the overlying scalp tissues. There is a small amount of fluid underlying the craniotomy flap measuring up to 4 mm in thickness. The resection cavity within the right temporoparietal region measures approximately 2.3 x 0.8 cm and contains fluid. There is a thin, discontinuous peripheral rim of intrinsic T1 hyperintensity compatible with blood products. There is perhaps a minimal amount of enhancement along the superior aspect of the resection cavity which could represent minimal residual tumor.There is marked surrounding vasogenic edema within the right cerebral hemisphere posteriorly with a similar degree of effacement of the right lateral and third ventricles with 8 mm of leftward midline shift, previously 9 mm. The temporal horn of the right lateral ventricle remains mildly dilated. There is fluid within the right mastoid air cells.
1. Expected post-surgical changes of craniotomy with near total resection of a previously seen temporoparietal mass with perhaps minimal residual enhancement along superior aspect of the resection cavity which could represent minimal residual tumor.2. Similar degree of extensive right cerebral vasogenic edema and leftward midline shift. 