Received: 18 September 2020
Accepted: 16 March 2021
First Online: 26 March 2021
: The Ethics approval was obtained from the Research Ethics Committee of Gregorio Marañón General University Hospital. The written consent to participate in the genetic testing was obtained from the patient (the parents signed the form on behalf of their child) and his parents.
: Written informed consent was obtained from the patient´s parents for publication of this Case Report.
: The authors declare that they have no competing interests.