 Foci of diffusion are seen along the posterior margin of the resection cavity, which are less prominent than the previous study.There is a rounded resection cavity in the right superior temporal gyrus surrounded by similar extent of T2/FLAIR high signal, not significantly changed since the previous study. The cavity measures 23 x 18 mm, unchanged. Along the posteromedial wall of the resection cavity and along the lateral wall there are foci of susceptibility suggestive of chronic blood products, unchanged from the previous study.There is a rind of enhancement seen along the posterior margin of the resection cavity which has slightly decreased in thickness since the previous study. The previous nodule of enhancement that was seen along the superomedial margin of the resection cavity is decreased in size from 4 mm previously, to 2 mm currently. The previous enhancement that was seen along the anteroinferior margin of the resection cavity is decreased from 5 mm previously to 2 mm in the current study. No hyperperfusion is seen in the areas of enhancement at the level of the resection cavity.Ventricular size is normal with no midline shift. The basal cisterns are patent.
1. Status post resection of GBM in the right superior temporal gyrus. The resection cavity size is unchanged with areas of enhancement scattered along the resection cavity margins which are slightly decreased in size. No evidence of hyperperfusion in the areas of the enhancement at the level of the resection cavity.2. Similar extent of surrounding FLAIR hyperintensity likely representing a combination of nonenhancing tumor, residual vasogenic edema, and/or post-treatment changes. 