Hemangiopericytoma

September 21, 2007 on 8:41 am | In Cancer |

Sharen J. Knudsen
Byron J. Bailey

Hemangiopericytoma is a rare tumor that arises from the pericytes of Zimmermann, which are small cells external to the capillary endothelial cells. Pericytes change the caliber of the vessel. They should always be considered to have malignant potential. Severe and uncontrollable epistaxis after biopsy has been described. Current therapy consists of preoperative embolization and en bloc resection of the tumor.

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