<prompt> Flat vegetations in pockets of valves are due to ?Rheumatic hea diseaseRheumatic hea diseaseNBTEInfective endocarditis  <response>: Ans. is b i.e., Libman Sacks Endocardites All forms of endocarditis, i.e. infective and non-infective, are characterized by a prototype lesion referred as vegetation. o But, they differ in morphology depending on the etiology of vegetation. Most common site : o for vegetations in Libman Sacks endocarditis are the A - V valves, mitral and tricuspid. o for vegetation in NBTE is mitral and less often aoic and Tricuspid. o for vegetations of RF is mitral followed by combined mitral and aoic. 