Metastatic hemangiopericytoma with prolonged survival.
A case of a hemangiopericytoma tumor metastatic to the lung from a central nervous system primary tumor in the posterior fossa is reported. The tumor was not responsive to treatment with cyclophosphamide, Adriamycin (doxorubicin), vincristine, DTIC (CYVADIC), high-dose methotrexate with citrovorum factor rescue, aziridinobenzoquinone (AZQ), or dibromodulcitol. However, the patient has had a prolonged survival, lasting for more than 26 years from original diagnosis, despite extensive recurrent primary disease and massive pulmonary metastases. Clinical and pathologic characteristics of these tumors are reviewed, with emphasis on the potential for long-term survival.
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