Cardiac angiosarcoma in the right ventricle treated by surgical resection

Figures

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  Figure 1. Transthoracic echocardiography showed a heterogeneous and irregular mass-like lesion measuring approximately 45×40 mm on the right ventricular free wall. Part of it protruded into the epicardium. LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.

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  Figure 2. Transgastric short-axis view of transesophageal echocardiography showed part of the mass-like lesion had mobility. LV, left ventricle; RV, right ventricle.

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  Figure 3. Contrast-enhanced CT showed a 51 mm lobular mass spreading laterally from the RV, it spread beyond the pericardium, and heterogeneous contrast enhancement could be seen within the mass. LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.

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  Figure 4. (A, B) Cine images of cardiac MRI (cMRI) for comparison in systolic and diastolic time. The tumour was attached to the anterior wall of the RV. (C) cMRI showed the mass lesion in the RV had heterogeneous high-signal intensity by T2-weighted imaging. LV, left ventricle; RV, right ventricle.

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  Figure 5. (A) The tumour was located from the anterior wall to the apex of the RV. (B) The tumour in the anterior wall of the RV behind the anterior leaflet of the tricuspid valve after right atriotomy. RV, right ventricle.

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  Figure 6. (A) The tumour was slightly white and hard and uneven. (B) The tumour (long arrow) in the right ventricle (RV) was removed and reconstructed with the autologous pericardium.

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  Figure 7. (A) Histological findings showed an increase in abnormal endothelial cells with large nuclei and that they are vascularised. (B) Immunohistochemistry showed many CD31-positive vascular endothelial cells, which were the tumour cells, were growing.