Two Case Reports of Sinonasal Glomangiopericytoma: A Very Uncommon Neoplasm

Sinonasal glomangiopericytoma (formerly called hemangiopericytoma) is a rare vascular tumour, arising from Zimmermans pericytes surrounding capillaries. It is an indolent tumour affecting older adults, with low malignant potential and excellent prognosis following complete resection, which is usually curative. Long-term follow up is essential part of the management, as recurrence can occur many years after treatment. In the past two decades, about 250 cases were reported. We represent here two case reports both are for male patients in their sixties, presented with right sided sinonasal glomangiopericytoma. These case reports will be accompanied by a brief literature review.