Related Experiment Video
Updated: Mar 18, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Kommerell Diverticulum in Adults: Evaluation of Routine CT Examinations
Tamaki Ichikawa1, Jun Koizumi, Keisuke Tanno
1Department of Radiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan. tamaki-i@is.icc.u-tokai.ac.jp or tamaki-i@mars.sannet.ne.jp.
Unlabelled:
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.
Related Concept Videos
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
Imaging Studies III: Computed Tomography
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Endoscopic Procedures II: Colonoscopy
Appendicitis-II: Diagnostic Studies and Management
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...

