Male, 59 years old, status post tumor resection. Findings are seen compatible with recent right temporal craniotomy and resection of a large tumor centered on the anterior right temporal lobe. Extensive pneumocephalus is an expected finding.The anterior temporal resection cavity contains predominantly fluid mixed with blood product and small amount of debris. A majority of the previously seen rim-enhancing tumor has been resected. The more inferior margins of the resection cavity demonstrate linear T1 hyperintensity compatible with blood product. Along the superior margin, there is some residual ill-defined enhancing tumor which spreads up into the corona radiata and posterior subinsular region similar to the prior exam. Also redemonstrated is subtle subependymal enhancement along the right ventricular atrium.Extensive T2 hyperintensity tracking superiorly from the resection bed is again seen involving the occipital lobe, basal ganglia and frontal and parietal centrum semiovale, without significant interval change. Generalized mass effect persists with sulcal effacement and midline shift to the left of up to 10 mm. The right lateral ventricle is partially effaced, though slightly improved from prior. The left lateral ventricle is mildly prominent, similar to prior. The basal cisterns remain patent. Volume loss of the cerebellum is also redemonstrated.
Expected findings are seen status post resection of a large right anterior temporal tumor. A majority of the tumor has been resected with only a small amount of residual enhancing tissue at the superior cavity margin involving the corona radiata and posterior subinsular regions. Also redemonstrated is subtle subependymal disease spread along the right ventricular atrium. Significant generalized mass effect is perhaps minimally improved from the prior exam.