Female, 50 years old, with lung cancer in two brain metastases treated with CyberKnife. Surveillance imaging. A rim-enhancing nodule within the left superior frontal gyrus has not clearly changed in size and continues to measure 18 x 13 mm. However, the associated parenchymal edema has improved to a mild degree.A punctate focus of enhancement within the anterior right temporal lobe has perhaps slightly decreased in size, now measuring 3 mm, previously 4 mm, with barely detectable edema. However, a new 4 mm enhancing nodule with mild local edema is seen along the lateral cortex of the right temporal lobe.No additional enhancing lesions are seen. No evidence of any significant generalized mass effect is detected. No intracranial hemorrhage or abnormal extra-axial fluid is seen. The ventricles are within normal limits.
1.The treated left superior frontal lesion is stable in size but with some interval improvement in associated edema.2.The treated right anterior temporal lesion is perhaps a millimeter smaller.3.A new 4 mm enhancing nodule is evident, however, along the lateral cortex of the right temporal lobe.