Received: 10 June 2019
Accepted: 6 October 2019
First Online: 23 October 2019
Ethics approval and consent to participate
: A family of the patient signed a letter of informed consent to allow his data to be stored, as required by Nagoya City University Hospital.
: Written informed consent was obtained from the patient and his parents for the publication of this case report and any accompanying images. A copy of the written consent form is available for review by the Editor of this journal.
: The authors declare that they have no competing interests.