<p>The stent graft (10) comprises a cylinder comprising a graft material in the form of a film and a stent that supports the cylinder. Further, the stent graft (10) is inserted within a region from the ascending aorta to the sinus of valsalva, and the stent graft comprises cylindrical body section (11) arranged in the ascending aorta and the sinus of valsalva section (12) arranged in the sinus ofvalsalva and having an inner diameter larger than that of the body section (11).</p>
