An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Acute aortic syndrome (AAS). Arrows indicate the possible progression of each of these…
Figure 1
Acute aortic syndrome (AAS). Arrows indicate the possible progression of each of these aortic lesions.
Figure 2
Histological section (Mason's technique) from…
Figure 2
Histological section (Mason's technique) from a patient with aortic dissection. Muscle is stained…
Figure 2
Histological section (Mason's technique) from a patient with aortic dissection. Muscle is stained in red and collagen in green. The aortic media (stained in red) is partitioned in two (arrows); one forms part of the dissection flap, the other forms the outer wall of the false channel. Large arrow indicates the dissection flap. LF, false lumen; LV, true lumen.
Figure 3
Anatomic specimen from a patient…
Figure 3
Anatomic specimen from a patient with type A aortic dissection. The entrance tear…
Figure 3
Anatomic specimen from a patient with type A aortic dissection. The entrance tear in the ascending aorta is clearly visible (arrow).
Figure 4
Transoesophageal echocardiographic study illustrating the…
Figure 4
Transoesophageal echocardiographic study illustrating the double channel aorta and dissection flap (left panel),…
Figure 4
Transoesophageal echocardiographic study illustrating the double channel aorta and dissection flap (left panel), and the entrance tear (arrow) in the ascending aorta (right panel). Transversal planes.
Figure 5
Anatomical cross section of the…
Figure 5
Anatomical cross section of the descending thoracic aorta. The ostium of an intercostal…
Figure 5
Anatomical cross section of the descending thoracic aorta. The ostium of an intercostal artery sectioned by the dissecting haematoma is clearly visible. A small hole in the dissection flap will permit blood flow between false and true aortic lumens.
Figure 6
Anatomical cross section of the…
Figure 6
Anatomical cross section of the ascending aorta. An intramural aortic haematoma can be…
Figure 6
Anatomical cross section of the ascending aorta. An intramural aortic haematoma can be observed (asterisk).
Figure 7
Transoesophageal echocardiographic study of a…
Figure 7
Transoesophageal echocardiographic study of a patient with a dilated aorta (left panel) and…
Figure 7
Transoesophageal echocardiographic study of a patient with a dilated aorta (left panel) and a crescent shaped thickening (asterisk) of the anterolateral wall of the aortic root that corresponds to an aortic intramural haematoma. Transverse planes.
Figure 8
Histological section (Mason's technique) of…
Figure 8
Histological section (Mason's technique) of a patient with intramural haematoma. Splitting of the…
Figure 8
Histological section (Mason's technique) of a patient with intramural haematoma. Splitting of the aortic media by a haematoma (asterisk) is well documented.
Figure 9
Anatomical cross section of the…
Figure 9
Anatomical cross section of the descending thoracic aorta. A penetrating atherosclerotic aortic ulcer…
Figure 9
Anatomical cross section of the descending thoracic aorta. A penetrating atherosclerotic aortic ulcer is indicated by an arrow.
Figure 10
Transoesophageal echocardiographic study of a…
Figure 10
Transoesophageal echocardiographic study of a patient with an aortic ulcer (asterisk) in the…
Figure 10
Transoesophageal echocardiographic study of a patient with an aortic ulcer (asterisk) in the descending thoracic aorta (AO). Longitudinal plane.
Figure 11
Transoesophageal echocardiographic scans in a…
Figure 11
Transoesophageal echocardiographic scans in a patient with a limited acute aortic dissection secondary…
Figure 11
Transoesophageal echocardiographic scans in a patient with a limited acute aortic dissection secondary to aortic ulceration. A thick, calcified, irregular flap can be seen. Longitudinal planes. Arrow, entrance tear, LF, false lumen, LV, true lumen.