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Three channelled aortic dissection
  1. S Yoshida,
  2. M Shidoh
  1. Department of Radiology, Muroran City General Hospital, Yamate-chou 381, Muroran 051-8512, Japan; satyoshi{at}

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    A 37 year old man with Marfan’s syndrome complained of a second episode of sudden chest pain. He had undergone Bentall’s operation at another hospital because of a diagnosis of Stanford type A aortic dissection. Enhanced computed tomography showed a three channelled aortic dissection in the thoracic descending aorta, having one occluded lumen and two patent lumens (fig 1A). The former was a thrombosed false lumen deriving from the previous dissection, and the latter was a new dissection from the previous true lumen (fig 1B). This case indicates that thrombus of the false lumen in a patient with chronic aortic dissection does not always mean a stable condition. Two years later he died suddenly of an unknown cause.

    Figure 1

    (A) Enhanced computed tomography showing a three channelled aortic dissection in the thoracic descending aorta and (B) schematic diagram showing old false, new true, and new false lumens.

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