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The 2 cm mitral valve mass seen in Figure 2 is stealthy on T1-weighted four-chamber (A) precontrast and (B) 1 minute and (C) 5 minutes postcontrast inversion-recovery imaging (TI = 400 msec). It is not clearly visible at 10-15 minutes postcontrast on (D) four-chamber, (E) two-chamber, and (F) basal short-axis late gadolinium enhancement imaging (TI = 300 msec). LA, left atrium; LV, left ventricle.
