[Type B intramural hematoma rupture].

A 70-year-old male, who had complained sudden chest pain and sweating, was admitted to our hospital and diagnosed as a type B intramural hematoma rupture. Emergency repair was performed with arch replacement and open-stent method. Post-operative recovery was satisfactory and the patient was discharged. A type B intramural hematoma rupture is relatively rare. Trans-esophagial echocardiography is quite useful to detect the aortic lesion and to determine the ideal depth of the stent-graft.