Figure 1. Computed tomographic scan of type A intramural hematoma. (A) The intramural hematoma affects the aortic arch. (B) The intramural hematoma in this patient extends to the ascending aorta, with the widest dimension of the hematoma being approximately 15.7 mm on the sagittal plane. (C) The maximum width of the intramural hematoma in this patient on the horizontal plane is approximately 15.5 mm. (D) The maximum internal diameter of the ascending aorta in this patient on the transverse plane is approximately 48.9 mm, and the aortic ulcer is located on the left posterior side. (E) The postoperative CTA indicates that the stent is positioned well and the ulcer site is fully covered. CTA – computed tomography angiography.