Female, 51 years old, history of breast cancer with metastases to the brain status post SRS. Several (up to four) subcentimeter enhancing lesions are evident within the right cerebellar hemisphere. These were all present on the prior examination and show interval decrease in size. For example, the paramedian lesion now measures 8 x 4 mm, previously 9 x 5 mm. A small enhancing lesion within the anterior left frontal lobe has also decreased in size by a similar degree.None of these lesions is associated with any significant parenchymal edema. No new pathologic intracranial enhancement or signal abnormality is seen. No intracranial hemorrhage or abnormal extra-axial fluid is seen. The ventricles are normal in size and morphology.
1.Interval decrease in size of several subcentimeter enhancing intracranial lesions.2.No new or progressing lesions are seen.