Objection: To evaluate of Kommerell diverticulum (KD) in adults during routine CT examinations.
Material and methods: Eighty-seven cases of left aortic arch with aberrant right subclavian artery (LAARS) and 28 cases of right aortic arch with aberrant left subclavian artery (RAALS) were found on routine CT examinations using 64-128 multidetector CT. We assessed the incidence of KD and measured the size of KD, and compared the results between both groups. We evaluated associated congenital and acquired cardiovascular diseases on both groups.
Results: The incidence of KD in each group was as follows: RAALS 100 % and LAARS 48.3 % and incidence of KD in RAALS group was significant higher than in LAARS group. The mean KD size was as follows: RAALS 32.8 mm and LAARS 17.8 mm and, the size of KD in RAALS group was larger than that in LAARS group. Two cases were associated with congenital heart disease. Several cases were associated with acquired aortic diseases including aortic aneurysm, dissection, severe atherosclerosis and aortitis.
Conclusion: KD was common among adults with an ASA and some adults were associated with aortic diseases.