• A 23-year-old man had two recurrences following local excision of a hemangiopericytoma of the right orbit. A third local excision was followed by a course of postoperative radiation therapy (64.8 Gy [6480 rad] in 36 treatments). Seven and a half years following therapy, the patient is disease free and has experienced no side effects.
Setzkorn RK, Lee D, Iliff NT, Green WR. Hemangiopericytoma of the Orbit Treated With Conservative Surgery and Radiotherapy. Arch Ophthalmol. 1987;105(8):1103–1105. doi:10.1001/archopht.1987.01060080105037
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