PMC3975197_01
The parasternal long axis view shows a sessile tumour (*) filling out almost the whole left atrium (LA) (a) prior to tremelimumab therapy. Three months later, the atrial tumour had completely disappeared (b). LV = Left ventricle.
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F1
The examination revealed a massive tumour metastasis, probably haematogenic spread through the pulmonary veins, filling out almost the whole left atrium (initial size: fig. 1a, fig. 2a). Moreover, 6 weeks later, the left atrial tumour had completely disappeared (fig. 1b, fig. 2c).
a The four-chamber view reveals a massive left atrial tumour (*), probably out of pulmonary veins. b Thirty-six days after the first tremelimumab infusion regression of the intracardiac metastasis occurred (arrow). c Six weeks later, the left atrial tumour had completely disappeared. LA = Left atrium; LV = left ventricle.
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F2
A follow-up echocardiography 4 weeks later showed regression of the intracardiac metastasis (fig. 2b).