Received: 4 September 2019
Accepted: 26 February 2020
First Online: 12 March 2020
Ethics approval and consent to participate
: The case was reviewed by the Longhua Hospital Ethics Committee and ethical approval was waived as written consent was obtained from the patient.
: Written patient consent was obtained for publication of all aspects of the case including personal and clinical details and images, which may compromise anonymity.
: The authors declare that they have no competing interests.