Reason: 65 yo M with metastatic H\T\N cancer to brain s/p SRS to L occipital met in 9/2015, eval for progression History: as above There is continued stable appearance of a 7 mm enhancing focus along the left temporal occipital region, which appears linear on axial imaging and demonstrates minimal intrinsic T1 hyperintensity. Scattered nonspecific T2/FLAIR hyperintensity within the subcortical and deep white matter unchanged. There is a focus of susceptibility in the left basal ganglia region which is slightly increased in conspicuity likely relating to chronic hemosiderin deposition.The ventricles and sulci are within normal limits. The cisterns remain patent. There is no midline shift or mass effect. There are no new areas of abnormal signal or pathological enhancement. There is no diffusion abnormality. No extra-axial fluid collection is identified.Normal flow-voids are demonstrated in the major intracranial vascular structures. The midline structures and craniocervical junction are within normal limits. There is moderate mucosal thickening in the right maxilla sinus and mild in the left. There is mild fluid opacification of left mastoid air cells.
Stable posttreatment changes with persistent linear area of enhancement along the left temporal occipital region, in the location of previously treated metastasis.