Male, 62 years old, with GBM, status post craniotomy and tumor resection. This examination is composed of postcontrast T1-weighted images only. Evidence of interval resection of the right paramedian frontal lobe tumor is redemonstrated. A large portion of the previously seen partially necrotic tumor has been resected. Thick enhancing tissue along the anterior aspect of the surgical cavity is concerning for residual tumor. Thinner enhancement along the posterior and inferior cavity margins may represent residual tumor and/or postoperative change. Trace leptomeningeal enhancement along the marginal branch of the right cingulate sulcus is unchanged. Vasogenic edema surrounding the resection bed appears to have improved relative to the preoperative study.
Postoperative findings are seen compatible with resection of the right paramedian partially necrotic tumor. Some residual tumor is suspected as above, though it appears that the majority of the lesion has been removed.