Spontaneous Bacterial Empyema Due to Enterococcus faecalis Carlos Cabanillas Díez-Madroñero, Andrés Briones Gómez, Cristina Luna Pardo

Empyema Necessitatis caused by Actinomyces meyeri Laura Castellanos López, Elena García Castillo, Rosa María Girón Moreno

Spontaneous Bilateral Pneumothoraces in Erdheim-Chester Disease Ruben Eduardo Pacios Blanco, Luis Gorospe Sarasua, María Eugenia Reguero