| Louvel's sign | |
|---|---|
| Differential diagnosis | deep vein thrombosis |
Louvel's sign is aclinical sign found in patients withdeep vein thrombosis. The sign 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 compressedproximally.[1]
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