Maxillary sinus hemangioma: usefulness of embolization according to classification Hemangioma de seio maxilar: utilidade da embolização de acordo com a classificação

Hemangioma in the nose and nasal sinuses is rare, particularly in the maxillary sinus. Differentiation of hemangioma from malignant tumors is important, because both may be accompanied by bone destruction. With regard to giant hemangioma, this type has a rich blood supply, and surgical treatment requires particular care due to the high risk of massive bleeding and obstructed field of view. Although maxillary sinus hemangioma has been sporadically reported, few reports have described cases of this type diagnosed according to the 1996 classification of the International Society for the Study of Vascular Anomalies (ISSVA) and treated with arterial embolization. Here, we report three cases of massive sinonasal heamangioma that were resected after arterial embolization.