Primary malignant pericardial mesothelioma with difficult antemortem diagnosis: A case report

Figure 2 Ultrasound cardiography on day 23. A: Pericardial effusion was observed, especially in the posterior left ventricle. The degree of pericardial effusion was unchanged; B: Mass-like echogenicity at the apex, which was not present on admission, was evident on the 23^rd day (indicated by a red arrow).