Focal, Extranodal Primary Polymorphous Hemangioendothelioma Treated With Endovascular Embolization and Resection...

A male 28-year-old patient complained of a dorsal mass that has been increasing in size in the last six months. The mass was painful, soft, no mobile, and no neurological symptoms or signs were documented. A vascular-type tumor was suspected and endovascular followed by open surgical resection was indicated. Histopathological revealed a rare case of an adult with a primary extranodal polymorphous hemangioendothelioma. Total resection was confirmed by tumor-free resection margin. The postoperative course was uneventful. Polymorph hemangioendothelioma is a rare vascular tumor. Preoperative endovascular embolization is recommended given the high vascular features of the lesion and, therefore, the high rate of bleeding during surgery, to achieve complete resection.