Received: 3 December 2017
Accepted: 7 February 2018
First Online: 28 May 2018
Ethics approval and consent to participate
: This case report was ethically approved and consented by the Ethics Committee of Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School.
: Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.