Osler's nodes are painful, red, raised lesions found on the hands and feet. They are associated with a number of conditions, including infective endocarditis, and are caused by immune complex deposition. They are named after Sir William Osler who described them in the early 20th century. Their presence is one definition of Osler's sign.
The nodes are commonly indicative of subacute bacterial endocarditis. 10–25% of endocarditis patients will have Osler's nodes. Other signs of endocarditis include Roth's spots and Janeway lesions. The latter, which also occur on the palms and soles, can be differentiated from Osler's nodes because they are nontender.
It can also be seen in
- systemic lupus erythematosus
- marantic endocarditis
- disseminated gonococcal infection
- distal to infected arterial catheter
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- synd/1702 at Who Named It?
- W. Osler. Chronic infectious endocarditis. Quarterly Journal of Medicine, Oxford, 1908-1909, 2: 219-230.
- Osler sign at Dorland's Medical Dictionary
- Osler nodes at Dorland's Medical Dictionary
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