Funding for this research was provided by:
Japanese Ministry of Health, Labour and Welfare (H29-013, H29-020)
Received: 7 June 2018
Accepted: 4 January 2019
First Online: 11 January 2019
Ethics approval and consent to participate
: The genetic analysis protocol was approved by the Institutional Review Board at the Ethical Committee of Tohoku University. Written informed consent was obtained from the patient’s parents for participating the study.
: Written informed consent was obtained from the patient’s parents for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor of this journal.
: Tatsuki Mizuochi is an Editorial Board Member for BMC Gastroenterology. Other authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.