 This exam is mildly degraded by motion artifact. There are post-operative findings related to recent left frontal craniotomy, including dural enhancement along the left frontal region. There is a subjacent resection cavity containing foci of susceptibility effect, T1 hyperintensity, and decreased diffusion compatible with blood products as well as surrounding T2 hyperintensity and unchanged 7 mm rightward midline shift. There are additional foci of susceptibility compatible with subdural blood products along the falx cerebri and deep to the craniotomy flap. There is no abnormal intracranial enhancement superimposed upon areas of intrinsic T1 hyperintensity. The ventricles and basal cisterns are unchanged in size and configuration. The major cerebral flow voids are intact. There is susceptibility artifact in the posterior upper cervical spine related to metallic hardware.Perfusion imaging was inadvertently performed.
Expected post-operative findings related to resection of a hemorrhagic left frontal lobe lesion, with residual blood products in the surgical cavity. There is unchanged surrounding edema and resultant similar midline shift. Followup imaging recommended to assess for residual enhancing tumor.