Primary aortic malignant tumors are extremely rare. When symptomatic, aortic intimal sarcomas give clinical findings secondary to embolic phenomena;they can produce mesenteric ischemia, hypertension, skin necrosis, absence of peripheral pulses. The diagnosis can be suspected radiologically Fibrosarcoma is the most common primary aortic malignancy, but angiosarcoma and leiomyosarcoma may also occur. We experienced a case of intraaortic mass, that was suspected as angiosarcoma, that diagnosed by chest CT, transesophageal echocardiography, aortography, and biopsy.