Fig. 1From: The usefulness of 18F-FDG PET/CT for assessing methotrexate-associated lymphoproliferative disorder (MTX-LPD)The PET/CT-positive and MDCT-negative case. Bone marrow involvement with obvious FDG uptake was detected by PET/CT (a). The MDCT scan showed no mass lesion (b)Back to article page