Trichosporon species now ranks as the second most common cause of disseminated yeast infections with a high mortality rate.Breakthrough trichosporonosis in patients receiving echinocandins therapy is being recognized recently.We present a case of breakthrough trichosporonosis with acute viral myocarditis while receiving caspofungin therapy.Trichosporon infection should be considered in patients,who have risk factors for invasive fungal infection and develop unexplained clinical manifestations of infection despite treatment with echinocandins.