Artículo original: Ufuk, F., Ocak, I., Chelala, L. et al. The reverse halo sign in emergency chest CT: A diagnostic guide across diverse pulmonary conditions. Emerg Radiol 32, 435–445 (2025). DOI: https://doi.org/10.1007/s10140-025-02337-2 Sociedad: American Society of Emergency Radiology (@ASER). Palabras…