Janeway lesions are non-tender, small erythematous or haemorrhagic macular or nodular lesions on the palms or soles only a few millimeters in diameter that are indicative of infective endocarditis.
Edward Gamaliel Janeway (1841 - 1911) was an American physician and pathologist. Remembered for his description of Janeway lesions (1899) as a distinctive painless dermatological manifestation seen in some cases of infective endocarditis
Osler node: Painful, red, raised lesions usually found on the palms and soles. Caused by immune complex deposition and the resulting inflammatory response.
Emanuel Libman (1872 - 1946) was an American physician. 1924 - Along with his student Benjamin Sacks, defined atypical verrucous valvular lesions in patients with SLE (Libman–Sacks endocarditis)