Disorder of brain, unspecified [G93.9], history of ovarian metastasis. There is redemonstration of a right frontal craniotomy with resection of a right frontal lobe lesion. The surgical cavity appears contracted compared to prior examination. A few foci of susceptibility probably relating to hemosiderin deposition are demonstrated in the surgical bed.There is a 2.1 x 1.6 cm ring-enhancing lesion adjacent to the trigone of the right lateral ventricle which previously measured 1.0 x 1.1 cm. There has been interval increase in wall thickness and peripheral enhancement of this lesion. The lesion demonstrates mild diffusion restriction. There is also increased vasogenic edema surrounding the lesion. No new enhancing lesions are identified. The previously identified left temporal lobe lesion is only faintly visualized on delayed T1 postcontrast fat-suppressed images. There are a few scattered foci of T2/FLAIR hyperintensity in the periventricular and subcortical white matter are nonspecific however likely related to chronic microvascular ischemic change. No midline shift is appreciated. No acute intracranial hemorrhage is identified. There is no evidence for acute ischemia.
1. Ring-enhancing lesion adjacent to the trigone of the right lateral ventricle appears slightly increased in size with increased peripheral enhancement and wall thickness suspicious for tumor progression. There is increased surrounding vasogenic edema.2. The previously identified enhancing left temporal lobe lesion is not well visualized on the current exam.3. Expected evolution of postsurgical findings related to right frontal lobe lesion resection are again seen.