Male, 50 years old, with increasing headache and dizziness. Evaluate metastasis. T2 hyperintense signal surrounding the laser ablated right posterior parietal lesion has improved. On postcontrast images, there is a thin ring of enhancement surrounding the treatment bed with no evidence of residual or recurrent nodular tumor.Postoperative findings are redemonstrated within the right parietal lobe. The hemosiderin stained resection cavity and surrounding T2 signal abnormality have not substantially changed. A small focus of enhancement at the anterior medial margin of the cavity is nonspecific and not significantly changed.A 3 mm focus of enhancement along the right superior frontal sulcus is unchanged relative to the prior examination. No definite new enhancing lesions are seen. Ill-defined T2 hyperintensity within the right periatrial region, and within the pons, are redemonstrated. No other areas of significant edema or mass effect are detected. Ventricular size and morphology remain within normal limits.
1.Expected findings status post laser ablation of a lesion in the right posterior parietal lobe. No evidence of residual or recurrent tumor is seen at this location.2.Redemonstrated of postoperative findings in the right parietal lobe without significant interval change.3.A punctate focus of enhancement along the right superior frontal sulcus is unchanged and likely represents a metastatic focus. No definite evidence of any new metastatic lesion is seen.