Journal of Research in Medical Sciences1735-1995161220111214A case of Takayasu's arteritis with pulsatile neck mass73417341ENMansoorKarimifarAssistant Professor, Department of Rheumatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran. mansoor_karimifar@yahoo.comMozhganKarimifarFreshtehSalimiMohaddesehBehjati2011061620111211Takayasu's arteritis (TA), also known as pulseless disease or occlusive thromboaortopathy, is a form of vasculitis of unknown cause that chiefly affects the aorta and its major branches, most frequently in young women. We describe an 18-year-old female with a soft and pulsatile mass in the left side of her neck. KEYWORDS: Takayasu's Arteritis, Vasculitis, Pulselessness, Aneurysm.