https://www.springermedizin.de/variability-of-cd34-expression-in-sinonasal-glomangiopericytoma-/17054112
Sinonasal glomangiopericytoma (GPC) is an uncommon primary sinonasal neoplasm showing a perivascular myoid differentiation. Originally perceived as
variabilityexpressionsinonasalglomangiopericytomapotential