Related Experiment Video
Updated: Jul 1, 2025

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Dysplastic aberrant left subclavian artery originating from a thoracic intersegmental artery associated with a right
Kohei Ishikawa1, Yasufumi Ohtake2, Mamoru Fukuda2
1Department of Neurosurgery, Nakamura Memorial Hospital, 291, Minami 1-jo Nishi 14-chome, Chuo-ku, Hokkaido, Hokkaido, 060-8570, Japan. k.ishikawa@med.nmh.or.jp.
Purpose:
A right aortic arch (RAA) is a rare vascular anomaly that often coexists with an aberrant left subclavian artery (ALSA). Due to the rarity of RAA, the development of an ALSA is not well understood.
Method:
We describe a case in which a 58-year-old man who was scheduled to undergo posterior decompression and fusion surgery for thoracic ossification of the posterior longitudinal ligament from Th1 to Th3 was found to have a RAA and an ALSA.
Results:
Preoperative computed tomography angiography demonstrated a RAA and an ALSA. The ALSA was extremely tortuous and ran in the paraspinal muscles behind the thoracic laminae, which meant it was in the surgical field. The ALSA arose from the descending aorta and bifurcated into the left segmental arteries of Th1 and Th2, and also bifurcated into the left vertebral artery, which had a normal subsequent course. The dysplastic ALSA was considered to have developed from the thoracic intersegmental artery. Based on preoperative examination findings, we performed spinal surgery without vessel injury.
Conclusion:
We report a rare case of a dysplastic ALSA that developed from the thoracic intersegmental artery with a RAA. The knowledge of this anomaly provides safety in spinal surgery of the cervicothoracic junction.
More Related Videos
13:10Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery ALCAPA
Published on: April 24, 2017
07:04Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
Published on: April 15, 2021
Related Concept Videos
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Thoracic Aorta
Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
The Aorta
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
Arteries of the Upper Limbs
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...