de Musset sign: Rhythmic nodding or bobbing of the head in synchrony with the heart beat, a sign of aortic insufficiency –incompetence of the aortic valve with aortic regurgitation. The causes include syphilitic aortitis, rheumatic fever, and aortic aneurysm. Named after the French Romantic poet and playwright Alfred de Musset (1810-1857).

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