Unusual Case of Coexisting Renal Malignancies: Mucinous Tubular and Spindle Cell Carcinoma Kidney With Sarcomatoid Dedifferentiation. Journal of Kidney Cancer, [S. l.], v. 3, n. 2, p. 8–13, 2016. DOI: 10.15586/jkcvhl.2016.51. Disponível em: https://jkcvhl.com/index.php/jkcvhl/article/view/51. Acesso em: 2 oct. 2025.