Female, 61 years old, with history of lung cancer and brain metastases status post radiosurgery. A focus of enhancement in the right postcentral gyrus now measures 6 mm diameter, previously 4 mm, with mildly increased FLAIR hyperintensity in the surrounding parenchyma. This lesion was initially detected on the 07/07/16 examination. However, there had been an enhancing lesion at this location first identified on the 10/07/14 examination and which subsequently resolved.No additional pathologic enhancement is identified. A small developmental venous anomaly seen in the left superior cerebellum. Nearly confluent white matter T2 hyperintensity in the periventricular regions is unchanged and likely related to therapy. No evidence of significant generalized mass effect is seen. Ventricular size and morphology remain within normal limits.
A small focus of enhancement in the right precentral gyrus continues to increase in size, now measuring up to 6 mm. As this is the site of a previously treated lesion, the possibility of recurrent disease would need to be considered. However, a treatment related effect can be considered as well, particularly if this area received a substantial radiation dose.