Osler nodules I33.0

Osler nodules are macroscopically visible, painful, nodular hemorrhages on fingers and toes that occur as a sign of an extracardiac manifestation of bacterial endocarditis (see Endocarditis lenta below). Etiologically, they are an expression of hematogenous dissemination in the form of bacterial microemboli or immune complex vasculitis.

Macroscopically, they are visible as livid, reddish-bluish discolored nodules, about the size of a lens, which can occur mainly on the fingers and toes, but also in the thenar and hypothenar region. They usually heal without complications in a short time.

In contrast to the Janeway spots, the Osler nodules are painful (Abeck D 2018)

Therapy see treatment of bacterial endocarditis.

1. Herold G et al (2018) Internal Medicine, Herold Verlag pp. 157, 325
2. Abeck D (2018) Staphylococcal and streptococcal infections of the skin. In: Braun-Falco`s Dermatology, Venerology Allergology G. Plewig et al. (Hrsg) Springer Verlag S 173