Reason: Known cavernous malformation with prior bleed, please evaluate and compare to outside images uploaded to PACS from March and December 2015, please History: Left lower extremity numbness There is a right precentral gyrus cavernous malformation measuring 1.5 x 1.3 cm (series 41 image 23), previously 1.8 x 1.9 cm on 12/2015 study. The lesion shows mixed T2 and T1 hyperintensity internally, with strong susceptibility effect, and a rim of susceptibility extending to the edge of the gyrus. There is less edema surrounding this lesion. There is mild enhancement of the lesion, but no associated developmental venous anomaly is detected. No abnormal diffusion restriction. There are nonspecific T2 periventricular and subcortical white matter hyperintensities. No evidence of midline shift. Ventricles, sulci, and cisterns are normal without evidence of ventriculomegaly. Scattered opacification of ethmoid air cells. There is left maxillary sinus mucosal thickening and complete opacification of the right maxillary sinus. Mastoid air cells are clear. Orbits are intact. Osseous structures are unremarkable.
Right precentral gyrus cavernous malformation with interval decrease in size. No apparent associated developmental venous anomaly. 