Malignant neoplasm of unspecified kidney, except renal pelvis [C64.9], Reason for Study: ^Reason: eval for residual History: s/p crani There is evidence of right fronto temporal craniotomy.Previously seen right middle cranial fossa mainly extra-axial mass has been totally removed. In addition, right anterior and mesial aspect of the temporal lobe shows wedge-shaped focal tissue loss with evidence of adjacent susceptibility artifacts indicating postoperative changes blood products. On gadolinium enhanced scan, there are linear ill-defined enhancements delineating the cortical margin of the right anterior temporal lobe where the extra axial mass abutted. In addition, there are focal more prominent enhancements at the area of tissue defects. These enhancement may represent postoperative changes but the possibility of small residual lesion cannot be completely excluded. Follow up examination is recommended. Scattered T2/FLAIR high signal intensity lesions on bilateral periventricular white matter indicate non specific small vessel ischemic disease.The ventricles, sulci and cisterns are unremarkable.The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The mastoid air cells are clear.Mucosal thickening of frontal sinus.
1. Post right middle cranial fossa mainly extra axial mass resection status.2. Focal tissue defect at the anterior mesial aspect of the right temporal lobe indicate resection margin.3. Linear somewhat ill defined enhancement of resection margin with focal more prominent enhancement on the tissue defect area indicate possible postoperative reactive changes. However, possibility of residual lesion cannot be completely excluded.4. No evidence of acute ischemic lesion.5. Non specific small vessel ischemic disease.6. Ventricular system appears to be normal. 