Osler's node

Osler's node
Osler's lesions found on the hand and fingers of a 43-year-old male with subacute bacterial endocarditis
Differential diagnosisinfective endocarditis

Osler's nodes are painful, red, raised lesions found typically on the hands and feet. They are associated with a number of conditions, including infective endocarditis, and are caused by immune complex deposition. Their presence is one definition of Osler's sign.

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