Neonatal spontaneous pneumomediastinum and the Spinnaker-Sail sign

Centro Hospitalar Leiria Pombal, Leiria, Portugal.Corresponding author: Ricardo Monteiro − Centro Hospitalar de Leiria Pombal, Rua das Olhalvas − Centro − Zip code: 2410-196 − Leiria, Portugal − Phone: +35124481700 E-mail: ricardomiguelmonteiro@gmail.comReceived on: Apr 2, 2014 – Accepted on: Aug 20, 2014DOI: 10.1590/S1679-45082015AI3133