Clear cell clusters in the kidney: a rare finding that should not be misdiagnosed as renal cell carcinoma. - Ortiz-Rey JA; Fachal C; Juaneda-Magdalena L; Muñoz-Martín M; Repáraz-Andrade A; Teijeira S; Lamas-Barreiro JM; Almuster-Domínguez S; San Miguel-Fraile P; Gómez-de María C (Virchows Archiv : an international journal of pathology, 2021)