Received: 4 July 2019
Accepted: 25 March 2020
First Online: 3 April 2020
Ethics approval and consent to participate
: We confirm that written informed consent to participate was obtained from the parents and family members of the proband in the study.
: We confirm that written informed consent for publication of their clinical details and/or clinical images was obtained from the patient her parents and grandmother.
: The authors declare that they have no competing interests.