A case of isolated aortic regurgitation, later diagnosed as Takayasu Arteritis; an importance of physical examinations: A case reportTshering Penjor¹, Thinley Dorji², Sangay Wangchuk², Thai Wangmo², Sonam Yangzom³, Sonam Wangchuk⁴ˡDepartment of Medicine, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan²Department of Internal Medicine, Central Regional Referral Hospital, Gelephu, Bhutan³Department of Radiodiagnosis and Imaging, Central Regional Referral Hospital, Gelephu, Bhutan⁴Department of General Out-patient, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, BhutanAddress of corresponding author: Tshering Penjor, Department of Medicine, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, BhutanEmail and ORCID of authorsTP tsheringpenjorbhutan11@gmail.com https://orcid.org/0009-0000-9848-4266TD dorji.thinleydr@gmail.com https://orcid.org/0000-0003-4932-8704SW swangchuk.md@gmail.com https://orcid.org/0000-0001-7584-3238TW thaiwangmo18@gmail.com https://orcid.org/0009-0005-2053-3845SY sonamyangzomsamba@gmail.com https://orcid.org/0000-0002-7293-1117SW wangchuksdrukpa@gmail.com https://orcid.org/0009-0001-3035-5633