Endoscopic Excision of Sino Nasal Hemangiopericytoma.

Hemangiopericytomas (HPCs) are rare vascular tumours originating from extra capillary cells called Zimmermann's pericytes. Only 5% of these lesions occur in the Sino nasal cavity. Sino nasal HPCs have a benign course with a high recurrence rate ranging from 9.5 to 50%. A radical surgical resection is considered the gold standard treatment either via external approach (lateral rhinotomy or Caldwell-Luc) or endoscopic approach. Three cases of Sino nasal hemangiopericytomas were treated at our institute. All these cases were operated via endoscopic approach. We are reporting their diagnostic work-up and the therapeutic management as case series. We also discuss epidemiological, clinical, morpho-pathological and radiological characteristics of this tumoral pathology. A treatment plan is also elucidated which may help to develop a long term treatment protocol for these lesions.