Status post craniotomy for left insular tumor resection. Evaluate postoperative changes. There are expected postsurgical changes from a left frontotemporal craniotomy and gross total resection of the enhancing portion of a left insular mass. No residual suspicious enhancement appreciated. Again seen is infiltration of nonenhancing tumor involving the left anterior and medial temporal lobes. There is mild local mass effect, including on the left cerebral peduncle and adjacent sulci. There is also mild effacement of the left lateral ventricle. On DWI imaging, there is minimal thin rim of restricted diffusion involving the margin of the surgical cavity which is consistent with blood products and some element of cytotoxic edema. Expected postsurgical changes include left frontotemporal extra-axial fluid collection mixed with air which causes mild mass effect on the adjacent sulci. There is mild expected postsurgical enhancement of the left-sided dura.
1.Expected postsurgical changes from a left frontotemporal craniotomy with gross total resection of the enhancing component of a left insular tumor, presumably high-grade glioma.2.Infiltrative nonenhancing tumor involving the medial and anterior left temporal lobe again seen.