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: Pediatrics
[{'content': 'Infective endocarditis can manifest as all except - \nSelect and explain. \nA. Bulky friable vegetations, B. Myocardial abscess, C. Left atrial thrombus, D. Septal perforation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Infected thrombi* or vegetations* are the characteristic pathological features of infective endocarditis.\nVegetations are found along the valve cusps.\nThey art friable*, bulky* and potentially destructive*.\nSometimes they erode into the underlying myocardium to produce an abscess cavity (ring abscess)*.\nMajor cardiac complications in infective endocarditis ;\nValvular damage causing insufficiency\xa0or stenosis*\nMyocardial ring abscess*.\nPerforation of aorta, interventricular septum or free wall or invasion of the conduction system*.\nSuppurative pericarditis*.\nEndocarditis can also complicate artificial\xa0valve, causing their partial dehiscence with para valvular leak*', 'role': 'assistant'}]