Acknowledgement
The authors thank Hiroki Yamaguchi (Nihon university, Japan) for gene mutational analysis.
Informed consent
The patient provided informed consent to publish this case report.
Disclosure statement
The Next Generation Development of Genome and Cellular Therapy Program at RIRBM is cooperatively funded by Repertoire Genesis Inc. and Hiroshima University. TI has received research funding from AbbVie Inc. and Nippon Shinyaku Co.. No other authors declare potential conflicts of interest (COI).