Prenatal diagnosis of cor triatriatum sinister associated with early pericardial effusion: A case report

Figure 1 First trimester findings. Pericardial effusion at week 12 of gestation appears as a hypoechogenic line that surrounds the entire heart (arrow) up to the atria.

Figure 2 Cor triatriatum sinister. A: Fibrous lamina in the left atrium (arrow) can be observed at week 28 of pregnancy; however, the complete path cannot be seen; B: Patent fibrous lamina in left atrium (arrow) at week 30 of gestation.