Japanese Journal of Clinical Oncology 31:548-552 (2001)
© 2001 Foundation for Promotion of Cancer Research
Four Cases of Meningeal Hemangiopericytoma Treated with Surgery and Radiotherapy
1Department of Radiology and 2Department of Clinical Pathology, Sapporo Medical University, School of Medicine, Hokkaido, Japan
We report our experiences of four cases with meningeal hemangiopericytoma treated with surgery and postoperative radiotherapy and survey the literature to elucidate the efficacy of radiotherapy. Patients were treated with surgical resection and 46–52 Gy postoperative radiotherapy. Three patients had local control for 30, 54 and 138 months, respectively and one patient had local recurrence after 49 months. Distant metastases were observed in two patients; one had multiple bone, liver and lung metastases and the other multiple bone and brain metastases. For bone and brain metastases, better tumor control was obtained with palliative radiotherapy and stereotactic radiotherapy. Literature analyses demonstrated that surgery and postoperative radiotherapy of 50 Gy or more resulted in significantly better local control than surgery alone (p = 0.02). Stereotactic radiosurgery was effective for intracranial recurrence or metastasis, especially when the tumor volume was <8 cm3 and >15 Gy at the 50% isodose line was used. Radiotherapy for bone metastases was also effective for palliation.
+ For reprints and all correspondence: Masanori Someya, Department of Radiology, Sapporo Medical University, School of Medicine, S1W16, Chuo-Ku, Sapporo 060-8543, Japan. E-mail: someya@sapmed.ac.jp