This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pathology
Libman Sachs endocarditis seen in? 
Select and explain. 
A. Rheumatic fever, B. SLE, C. Infective endocarditis, D. Hypercoaguable states
B: SLE
Answer: B: SLE 
Explanation: Ans. is 'b' i.e., SLE [Ref: Robbins 9th/e p. 562 & 8th/e p. 569)Libman Sack's endocarditis* It is seen in SLE and is characterized by small/medium sized, sterile, flat, Verrucous vegetations occurring on both (atrial and ventricular) surfaces of valve, which may extend to chordae tendinae and mural endocardium.* They may also occur in pockets of valves.* They may cause damage (destruction) of valve or myocardium (but less destructive than vegetations of infective endocarditis).