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Fig. 3B. 46-year-old man with concurrent intramural hematoma involving
ascending aorta and communicating dissection involving descending aorta. Axial
contrast-enhanced CT scan obtained at same level as A shows wall
thickening in ascending and descending aorta, but high-attenuation intramural
hematoma is less obvious. Classic intimomedial flap (arrow) dividing
true and false lumens in descending aorta is more conspicuous after contrast
administration. Note irregular margin of flap on false lumen side. Intramural
hematoma (arrowhead) is seen along lateral wall of false lumen.
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