<prompt> Most friable vegetations is seen in:Infective endocarditisLibman sacks endocarditisRheumatic hea diseaseRheumatoid hea disease  <response>: The hallmark of infective endocarditis is the presence of friable,bulky and potentially destructive vegetations containing fibrin,inflammatory cells and bacteria or other organisms on the hea valves. ref Robbins 9e560 