This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Aortic dissection and aberrant right subclavian

Case contributed by: Dr Frank Gaillard

From the case: Aortic dissection and aberrant right subclavian

Modality: CT

Case Discussion:

Contrast CT through the chest demonstrates an aortic dissection arising at the level of an aberrant right subclavian artery (which courses behind both trachea and oesophagus). No dissection of the ascending aorta can be identified (thus this represents a DeBakey type III, Stanford type B dissection).

The true lumen in this instance is easily traced as the smaller circular lumen located posteriorly on inferior slices. Calcification on the luminal surface confirms this.

Aortic dissection and aberrant right subclavian