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Osler's node
Etiology:
- characteristic of subacute bacterial endocarditis
- Streptococcus viridans
Pathology:
- composed of microabscesses & immune complex deposition in the papillary dermis, together with microemboli in the nearby dermal arterioles,
Clinical manifestations:
- tender (painful) cutaneous lesions,
- small raised & discolored lesions usually appearing on the pads of the fingers or toes
* image [2]
Differential diagnosis:
- Janeway lesions are macular & not painful
Related
Osler, William
General
sign/symptom
abnormal morphologic structure (malformation)
References
- Stedman's Medical Dictionary 26th ed, Williams &
Wilkins, Baltimore, 1995
- Rashid RM, Barros BS (image)
Hidden Heart Disease: 19 Dermatologic Clues You Should Know.
Medscape. June 13, 2017.
http://reference.medscape.com/slideshow/hidden-heart-disease-6004452
- Medical Knowledge Self Assessment Program (MKSAP) 20
American College of Physicians, Philadelphia 2025