ABSTRACT Hemangioendothelioma is a rare vascular tumor whose etiology has not yet been defined. Currently, it is known to affect different sites, such as the abdominal-pelvic cavity. It is also known to present intermediate characteristics to hemangioma and angiosarcoma. In recent studies, 50-76% of patients are asymptomatic. Surgical treatment is...
ABSTRACT The inferior vena cava leiomyosarcoma is a rare type of retroperitoneal sarcoma. Due to the small number of cases reported in literature, there is no well-defined protocol, based on randomized studies, on the most appropriate treatment for this neoplasia. Studies show that surgical resection R0 is the main curative...
