Gangliocytoma / ganglioglioma, WHO grade I, 3 month follow up. There are post-biopsy findings in the left temporal lobe with linear susceptibility effect that extends to the mildly expansile, infiltrative, T2 hyperintense tumor centered in the medial left temporal lobe, with slight extension into the posterior limb of the left internal capsule. The mass displays diffuse intrinsic T1 hyperintensity, but there is also minimal superimposed patchy enhancement in portions of the mass. The tumor measures up to approximately 40 mm in size, which is not significantly changed. There is no evidence of acute intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are unchanged.
No evidence of progression of the tumor centered in the medial left temporal lobe.