Acknowledgments
We thank Y. Nawa and K. Nakase, staff at the Division of Hematology, Ehime Prefectural Central Hospital, Matsuyama, Japan, for performing the lymph node and bone marrow biopsies. We also appreciate the PET-CT imaging performed by T. Kikuchi, a member of the staff at the Division of Radiology, Ehime Prefectural Central Hospital, Matsuyama, Japan. Moreover, we thank M. Onishi and Y. Okuda, staff at the Dohgo Spa Hospital, Matsuyama, Japan for providing valuable suggestions regarding the management of the patients.
Conflict of interest
None.