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Hemangiopericytoma is a rare soft tissue tumor with unpredictable biological behavior and with a high local recurrence rate. Wide surgical excision of all lesions, whenever feasible, should be the treatment of choice.

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During a 20-year period, 77 patients who underwent ligation of the common or internal carotid artery were analyzed for the site, side of hemorrhage and/or ligation, with incidence of rebleed, previous treatment (surgery and/or radiation therapy), the type of incision utilized for resection, the incidence of preoperative and intraoperative hypotension and hemiplegia. The immediate mortality and subsequent follow-up of the patients were also noted.

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