Hemangiopericytoma of the cervical spine: report of an unusual case.

A hemangiopericytoma of the cervical spine in a 31-year-old woman is possibly the first reported in the orthopedic literature. There is some confusion about the most efficacious treatment. Based on six cases in the medical literature, it would appear that adjunctive radiation, postoperatively, helps to decrease the recurrence rate of the tumor.