Resumo

ALVARADO SANCHEZ, Eduardo; BENAVIDES SANTOS, Andrés; VEGA CHAVES, Juan Carlos  e  ZARNOWSKI GUTIERREZ, Andrés. Tumor renal con extensión al atrio derecho a través de la vena cava inferior: reporte de caso. Rev. costarric. cardiol [online]. 2021, vol.23, n.2, pp.19-22. ISSN 1409-4142.

This article describes a clinical case of a patient with a ‘tumoral thrombus’’. These are tumors that extend from the affected organ to the right atrium, through the inferior vena cava. Up to 10% of the tumors described can reach the inferior vena cava and 1% of these reach the right atrium. Renal cell carcinoma is the most common to produce this condition.

The objective of the article is to show that it is essential to carry out an adequate differential diagnosis since there are different tumor processes that can cause a ‘’tumoral thrombus’’ and different causes of masses in the right atrium. The symptoms of patients with this condition will be caused by the obstruction of the vena cava. The diagnosis is made with imaging studies, ultrasound (US), echocardiography, computerized axial tomography (CT) and magnetic resonance imaging.

The management must be surgical, however it has an unfavorable prognosis, in some cases the primary tumor can be resected and the mass that has invaded the inferior vena cava removed.

Palavras-chave : Right atrial mass; kidney cancer; tumoral thrombus; inferior vena cava; tumor extension.

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