M. V. Jehendran, Suraj Gowda, Richa Kothari, Vimal Raj
tlooto Summary
An 11-month-old female with TOF is reported, in whom cardiac computed tomography revealed a double-lumen aortic arch and nonvisualized origin of the left subclavian artery, consistent with PFAA and ILSA.
Abstract
Abstract We report a rare case of a persistent fifth aortic arch (PFAA) associated with an isolated left subclavian artery (ILSA) in a patient with Tetralogy of Fallot (TOF). We report an 11-month-old female with TOF, in whom cardiac computed tomography revealed a double-lumen aortic arch and nonvisualized origin of the left subclavian artery, consistent with PFAA and ILSA. This case highlights the importance of advanced imaging in identifying complex congenital vascular anomalies.
Citation format
JEHENDRAN, M. V., et al. Unusual association of arch anomalies: Fifth arch remnant with isolated left subclavian artery. Indian Journal of Radiology and Imaging, 2026.