Received: 6 August 2019
Accepted: 25 February 2020
First Online: 12 May 2020
Ethics approval and consent to participate
: Informed consent was obtained from the patient or legal guardian as applicable. The study was approved by the Ethics Committee of Sun Yat-sen University Cancer Center.
: Written informed consent was obtained from the patient or legal guardian 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.