#osler nodes

[medicineisnotmerchandise]

Janeway Lesions vs. Osler Nodes

Both found in bacterial endocarditis.

Osler Nodes: Painful, palpable red lesions usually on fingers/toes. They are caused by immune complexes. (Image Credit)

Janeway Lesions: Non-painful, macular lesions, usually onpalms/soles. They are caused by septic emboli, more common in Staph aureus endocarditis.

[mynotes4usmle]

Osler nodes Mnemonic (Bacterial Endocarditis)

Osler: red, painful, subcutaneous nodes  

Osler = Ouch

Thank you  @physiciandentist

:)

[mynotes4usmle]

Acute VS. Subacute Bacterial Endocarditis

Acute

Staphilococcus aureus

Large, destructive vegetations

Mortality 50% :(

Subacute

Streptococcus group viridans

Previously damaged valve

CLINICAL PRESENTATIONS

Fever, chills, W loss, cardiac murmur

Roth spots: retinal emboli 

Janeway lesions: painless, red lesions, palms, soles 

Osler nodes: painfull, red SC nodules, finger, toes 

Splinter fingernail hemorrages