This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Osler's nodes are typically seen in which one of the following: 
Select and explain. 
A. Chronic candida endocarditis, B. Acute staphylococcal endocarditis, C. Pseudomonas endocarditis, D. Libman sack's endocarditis
B: Acute staphylococcal endocarditis
Answer: B: Acute staphylococcal endocarditis 
Explanation: Osler's nodes and subungual hemorrhage in infective endocarditis are caused by septic embolisation, and septic embolisation is more common in patients with acute S. aureus endocarditis. In endocarditis caused by S. aureus, vegetations are >10 mm in diameter and infection involving the mitral valve are independently associated with an increased risk of embolization. Ref: Harrisons principles of internal medicine, 18th edition, Page: 1054