Selective peripancreatic sarcoma metastases from primary gliosarcoma. Case report.

Two phenomena associated with malignant gliomas are: 1) the ability to metastasize systemically, and 2) the capacity to induce sarcomatous transformation within the supportive mesenchyma. An unusual case is presented of selective metastases of the sarcomatous elements of a mixed gliosarcoma. Immunohistochemical cell staining with glial fibrillary acidic protein was used to confirm the presence of abnormal glial elements in the primary brain tumor as well as the absence of such glial elements in the abdominal metastases.