4 years, Male, partial seizures, intractable epilepsy, status post resection of left-sided seizure focus area.. Interval postsurgical changes of left temporoparietal craniotomy are seen with blood products/fluid containing resection cavity involving the left parietal lobe, left posterior temporal lobe including the hippocampus, as well as the lingual gyrus of the left occipital lobe. Expected postsurgical changes include restricted diffusion along the surgical cavity margin compatible with cytotoxic edema. There is small extra-axial collection on the left. There is a left-sided drainage catheter. Unchanged nodular focus of T2 hyperintensity involving the right frontal corona radiata. No large infarct, large hemorrhage, or significant mass effect is appreciated. No midline shift or herniation. No hydrocephalus. There is partial opacification of the left mastoid air cells.
Expected postsurgical changes of epilepsy surgery with partial resection of the left temporal, parietal, and occipital lobes.