28 years Female, evaluate response to therapy in patient with metastatic breast cancer to brain. At least nine small enhancing lesions are evident within both cerebral hemispheres and the right cerebellum which are stable to minimally enlarged. Most are situated along the periphery of the brain as noted before. The largest lesion is found in the inferior right cerebellum. Examples of slightly enlarged lesions include the lateral right frontal parietal lesion measuring 16 x 9 mm, previously 15 x 7 millimeters, and a 5 mm right frontal lesion (series 5 image 26), previously 4 mm in size.Minimal surrounding edema persists around many of the lesions. No evidence of significant generalized mass effect is seen. No abnormal extra-axial fluid collections are identified. There are no findings to suggest acute intracranial hemorrhage, and the above-mentioned lesions do not appear to be hemorrhagic themselves. The ventricles are stable and normal in size.The visualized paranasal sinuses and mastoid air cells are clear.
Multiple scattered metastatic lesions are again seen which are overall stable although few measure minimally larger in the interval. Slight enlargement may be related to recent treatment or perhaps related to slight differences in technique, although progression is not entirely excluded. No definite evidence of metastatic disease progression.