Fig. 1

Imaging, surgical and pathogenic findings in the patient. (a) A space-occupying lesion (red arrow) was observed in the left atrium measured 60 × 54 mm by cardiac ultrasonography. (b) Abdominal CT scan showed extensive intrahepatic bile duct dilatation (red arrow). (c) The round cardiac mass (white arrow) in the left atrium was exposed in the surgery, which was an endocardial hematoma close to the posterior mitral valve. (d) The egg of C. sinensis (red arrow) was firstly identified in the stool samples, and later a smaller egg (black arrow) consistent with that of heterophyid trematodes was distinguished from C. sinensis. (e) Larger-sized eggs in the stool samples were consistent with those of the Echinostomatidae family