Female, 38 years old, with history of AVM status post SRS, yearly surveillance. An area of abnormal T2 hyperintensity measuring approximately 2 cm in diameter is again seen involving the left inferior parietal lobule. The abnormal vessels seen adjacent to this signal abnormality on the prior examination are not visualized on the present study due to lack of IV contrast. However, the morphology and size of the signal abnormality have not significantly changed from prior. On time-of-flight MRA images, and no definite abnormal vascularity is seen in the vicinity of this lesion.Cerebral morphology and signal characteristics are otherwise within normal limits. No evidence of significant edema or mass effect is seen. No restricted diffusion is noted. There are no findings to suggest acute intracranial hemorrhage or any abnormal extra-axial fluid collections. Ventricles are normal in size and morphology.MRA images demonstrate normal caliber and morphology of the intracranial vasculature. No areas of significant vascular stenosis or occlusion are seen. No aneurysms are detected within the limitations of technique.
1.Without the benefit of IV contrast, the previously demonstrated vascular tangle seen within the left inferior parietal lobule is not discretely visualized on today's exam.2.However, the associated parenchymal signal abnormality is seen and shows no significant interval change. No new intracranial lesions are detected.3.The MRA evaluation is within normal limits.