Regmi, Pradeep RAmatya, IshaKafle, BipulaKayastha, PrakashPaudel, Sharma2026-03-302026-03-302021https://hdl.handle.net/20.500.14572/5527Pradeep R Regmi1,3, Isha Amatya2 , Bipula Kafle3, Prakash Kayastha4, Sharma Paudel4 1Department of Radiology, University Hospital of Ioannina, Ioannina, Greece 2Department of Community Medicine, Kathmandu Medical College, Duwakot, Bhaktapur, Nepal 3Department of Radiology, Hospital for Advanced Medicine and Surgery, Dhumbarahi, Kathmandu, Nepal 4Department of Radiology, Maharajgunj Medical Campus, Tribhuvan University Teaching Hospital, Institute of Medicine, Maharajgunj, Kathmandu, NepalABSTRACT Congenital variations and anomalies of the aortic arch are important entity in vascular imaging. Most of them are asymptomatic. About 30-40% presents with tracheo-oesophageal symptoms like dyspnea and dysphagia. A 27 year-old female presented with persistent dysphagia for 6 months duration and cause of persistent dysphagia was the right sided aortic arch with aberrant left subcalvian artery from Kommerell’s diverticulum. The diagnosis was made through combination of chest X-Ray, echocardiography, non-ionic contrast swallow and Computed Tomography angiography. Non-invasive modalities (CT and MR Angiography) play an important role in diagnosis and pre-operative surgical planning providing relationship with the surrounding structures especially trachea and esophagus. Keywords: Aortic arch, CT angiography, dysphagia, left subcalvian arteryen-USAortic archCT angiographydysphagialeft subcalvian arteryArticle