Fig. 1　Changes in chest X-rays of Patient 1. (a) Nodule at the time of the diagnosis of lymphoproliferative disorder (LPD) (arrow). (b) The nodule disappeared 4 months after discontinuation of methotrexate (MTX).
Fig. 1　Changes in chest X-rays of Patient 1. (a) Nodule at the time of the diagnosis of lymphoproliferative disorder (LPD) (arrow). (b) The nodule disappeared 4 months after discontinuation of methotrexate (MTX).