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Article History

Received: 15 April 2026

Accepted: 17 June 2026

First Online: 20 June 2026

Declarations

:

: This study was approved by the Ethics Committee of the Affiliated Hospital of Chengde Medical College. All participants provided written informed consent prior to genetic testing and data collection. All procedures were carried out in accordance with the Declaration of Helsinki. Consent for publication Written informed consent for the publication of clinical data, laboratory findings and genetic information was obtained from the proband and her mother. All personal identifiable details have been removed to protect patient confidentiality.

: Not applicable.

: The authors declare no competing interests.