Received: 27 December 2018
Accepted: 22 May 2019
First Online: 6 June 2019
Ethics approval and consent to participate
: Study was approved by the Ethics Committee of the Policlinico Universitario A. Gemelli-Università Cattolica del S. Cuore, Rome.
: Informed consent was obtained from the parents of the patients for publication of this cases report .
: The authors declare that they have no competing interests.