Correct answer: Janeway lesions. These are - unlike Osler nodes - painless lesions that can form on the palms of the hand or the bottom of the feet. They're a result of septic embolisms that result in micro abcesses, and are most commonly seen in infective endocarditis.
As far as i know that the only difference in distinguishing the two lesions clinically in IE is whether it is painful or not.......If painful then osler nodes and if Painless then Janeway lesion......
According to the Oxford Handbook of Clinical Medicine (8th edition), Osler nodes are the painful lesions and Janeway lesions the painless ones. It's also on Wikipedia by the way, I checked that as well.