<unk>  is a clinical<unk>  that indicates that there is a drop of at least in the diastolic blood pressure on raising the arm. It occurs in patients with aortic regurgitation though shouldn't be considered a reliable finding.
Mayne's sign
Lockwood's sign
Litten's sign 
Litten's sign
Fothergill's sign
Hoover's sign 
Darier's sign
Louvel's sign