Status post craniotomy for tumor resection. There are postoperative changes related to a right parietotemporal craniotomy for partial tumor resection from the right temporal lobe. There is a resection cavity filled with fluid and blood products. A small amount of intracranial air is also seen. There is significant residual tumor around the resection cavity as demonstrated by post contrast imaging. There are several small satellite lesions, including within the right insula, the anterior right temporal lobe, and along the splenium of the corpus callosum, which are unchanged. Enhancing tumor extends up to and projects into the right vertricular atrium. There is associated restricted diffusion along the rim of the cavity as well as a lobulated finger-like area of restricted diffusion at the posterior and medial aspect. An additional, separate focus of restricted diffusion is noted at the right occipital pole. There are also multiple punctate foci of susceptibility artifact throughout the bilateral cerebral hemispheres, consistent with hemosiderin deposition. There remains generalized right cerebral mass effect, which is minimally improved. There is edema tracking through the temporal and parietal lobes and into the right basal ganglia. A midline shift to the left of approximately 9 mm is not significantly changed from the prior examination where it measured up to 10 mm. The right lateral ventricle is partly effaced.
Expected postoperative findings following partial resection of tumor from the right temporal lobe with significant tumor remaining around the margin of the cavity as well as several small satellite lesions. 