Artículo original: Littooij AS, McGuirk SP, Merks JHM, Riera L. Imaging and characterization of pulmonary nodules in children with solid tumors: what makes a pulmonary nodule a metastasis? Pediatr Radiol. 2026. DOI: https://doi.org/10.1007/s00247-026-06630-1 Sociedad: European Society of Paediatric Radiology (@ESPRSociety).…