en News and Reports News and Reports <p align="justify"> Three major arteries normally originate from the aortic arch. Variations of the aortic arch branches are observed in some cases. Rare variation of the aortic arch branches is originated from the retroesophageal right subclavian (RRS) artery as the last branch of the aortic arch. Variation of artery is possibly associated with the variation of the recurrent laryngeal nerve. This research provides an in vivo report of retroesophageal right subclavian artery during examination of the cervical vessels using magnetic resonance angiography (MRA). It is very important to consider the variation of the right subclavian artery during head and neck surgery. Non-invasive techniques such as MRA of cervical arteries can be used in order to examine them. </p> Aortic arch branches, Retroesophageal right subclavian artery, Magnetic resonance angiography 107 110 http://anatomyjournal.ir/browse.php?a_code=A-10-58-1&slc_lang=en&sid=1 Bahman Jalali Kondori bahmanjalali2010@gmail.com 1003194753284600532 1003194753284600532 Yes Baqiyatallah University Elham Rahimian mrikhatam@gmail.com 1003194753284600533 1003194753284600533 No Baqiyatallah University Mohammad Hossein Asadi asadiamh@yahoo.com 1003194753284600534 1003194753284600534 No Baqiyatallah University Majid Reza Tahsini mrikhatam@yahoo.com 1003194753284600535 1003194753284600535 No Baqiyatallah University