Osler's node



Osler's nodes are painful, red, raised lesions on the finger pulps, indicative of the heart disease subacute bacterial endocarditis. They are caused by immune complex deposition. 10–25% of endocarditis patients will have Osler's nodes. It can also be seen on the soles of the feet. They are named after Sir William Osler.

It can also be seen in
 * systemic lupus erythematosus
 * marantic endocarditis
 * disseminated gonococcal infection
 * distal to infected arterial catheter