Neoplasm of unspecified nature of brain [239.6], Reason for Study: ^Reason: eval tumor rsxn History: postop There is no acute ischemic lesion on the scan.Near total resection of previously shown the right parieto-temporal lobe large cystic mass. Resection area blood products are seen and shows layering which is measured about 19.1mm x 19.1mm sized. On gad enhanced images, there are irregular and multifocal enhancing areas especially lateral and inferior aspect of the original mass, these enhancing lesions may indicate residual mesion but could also be postoperative reactive changes. Follow up MR imaging study can be considered if clinically indicated.Resection margin and overlying dura and craniotomy sites also show blood products indicating postoperative changes.There are minimal amount of subdural fluid collections with pneumocephalus, again related to surgical resection.Midline shift toward left side is minimal. Other intra axial lesions including corpus callosum, left posterior temporal, left lateral ventricle occipital horn ependymal lining and left temporal lobe anterior horn appear to be stable in terms of size and MR characteristics.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. Near total resection of the right parieto-temporal lobe intra axial mass with resection cavity blood products as described above.2. Multifocal and irregular enhancing areas of resection cavity are seen which may indicate residual lesion or post resection reactive changes. Follow up MR study can be considered for further evaluation.3. No change of other multifocal intra axial lesions including corpus callosum, left temporal lobe anterior horn, left lateral ventricle occipital horn ependymal lesion and left posterior temporal lobe lesion.