A rare cause of delayed contrast enhancement on cardiac magnetic resonance imaging: infective endocarditis.

Although there have been a few reports about the magnetic resonance (MR) imaging features of infective endocarditis (IE), delayed contrast enhancement attributable to fibrosis has not been previously described. The case of a 4-year-old girl who was diagnosed with IE based on positive blood culture results and echocardiographic findings is presented. At cardiac MR imaging, late phase contrast-enhanced images revealed a significant enhancement suggesting fibrosis secondary to IE.