Diagnosis and Treatment of an Aberrant Right Subclavian Artery with Persistent Right
Ligamentum Arteriosum in
a Kitten
Joohyun
Jung1, Young Kwon Cho2,
Yechan Jung3, Jimo Jeong3 and Kichang Lee3
1lsan Animal Medical Center, 2030, Daehwa-dong,
Ilsanseo-gu, Goyang-si, Gyeonggi-do 411-803, Republic of Korea; 2College of Health Sciences, Radiologic Science,
Cheongju University, 298, Daesung-ro, Sandang-gu , Cheongju, 360-764
Republic of Korea,3Department of Veterinary Clinical Service, College of Veterinary Medicine, Chonbuk National
University, 664-14, 1 ga, DuckJin-dong, Jeonju 561-756, Republic of
Korea *Corresponding author:
kclee@chonbuk.ac.kr
Abstract
A 5-month-old, male-intact, 2.1 kg, domestic
shorthair cat was referred for investigation of persistent regurgitation following the ingestion of solid
food. The regurgitation was observed soon after weaning. Episodes of respiratory distress and cyanosis
were also present. Segmental dilation of the esophagus cranial to
cardiac was observed on survey radiographs and esophagogram. A vascular ring
anomaly, namely an aberrant right subclavian artery with a normal
aortic arch, was confirmed on three-dimensional (3D)
reconstructed CT images. More specifically, a Type 7 vascular
ring anomaly comprising an aberrant right subclavian artery and a
persistent right ligamentum arteriosum with a normal left aortic arch was diagnosed. The esophageal constriction was resolved
by surgical transection of the fibrous ligament.
Key words: 3D CT,
Aberrant
right subclavian artery,
Kitten, Vascular ring