Disclosure statement
No potential conflict of interest was reported by the authors.
Ethics approval
This study involves a human participant, but the institutional research ethics board does not require board review for a single case report when the patient’s privacy is protected, and therefore exempted this study. The patient gave informed consent for the publication of this report and associated images.
Authors’ contributions
Zhang and Huang collated the case report, searched the literature, and wrote the first draft. Li and Zhou collected and analysed case data, guided clinical diagnosis and treatment, and critically reviewed and revised the manuscript. All authors approved the final manuscript for publication.