Acknowledgments
We appreciate all of the staff at the Osaka University Hospital who were involved in the medical care of the patient.
Ethical approval
The study design was approved by the ethics committee of our institute and informed consent was obtained from the patient.
Disclosure statement
H. Shibayama has received honoraria from Takeda, and Celgene. K. Matsumoto has received 100 mg bulk powder of forodesine and research fund from Mundipharma. Scholarship endowment from Mundipharma is provided for the Department of Hematology and Oncology, Osaka University Graduate School of Medicine.