<unk>  is a clinical<unk>  found in patients with deep vein thrombosis. The<unk>  is defined as pain in the distribution of the affected vein which occurs during coughing or sneezing (Valsalva maneuver), and which disappears when the vein is compressed proximally.
Louvel's sign
Lockwood's sign
Adson's sign
Dance's sign
Hamman's sign
Litten's sign 
Litten's sign
Winterbottom's sign