<prompt> A previously healthy patient presents with dyspnea and low grade fever since 4 months. His lungs are clear. JVP is normal. ECG showed low voltage complexes. What is the possible diagnosis?Syphilitic aortic aneurysmHypertrophic cardiomyopathyRheumatic mitral stenosisTuberculous pericardial effusion  <response>: Ans. D. Tuberculous pericardial effusionThe presence of low grade fever and dyspnea indicates an infective pathology. The CXR shows an increased CT Ratio which could be a tuberculous pericardial effusion. The diagnosis is given more credence due to low voltage ECG which is seen with a pericardial effusion. 