MAIA, L. M. E. P.; MAIA, F. P. Inferior Vena Cava Mesenchymal Tumor with Intracardiac Extension Mimicking an Atrial Myxoma in a Young Adult: A Case Report. Brazilian Journal of Case Reports, [S. l.], v. 6, n. 1, p. bjcr153, 2026. DOI: 10.52600/2763-583X.bjcr.2026.6.1.bjcr153. Disponível em: https://bjcasereports.com.br/index.php/bjcr/article/view/bjcr153. Acesso em: 23 jan. 2026.