Figure 1:
Fluorodeoxyglucose (FDG) PET/CT image in a 27-year-old woman with ulcerative colitis and sclerosing cholangitis who presented with fever and fatigue. She underwent liver transplantation 3 years prior and was receiving immunosuppressive treatment with tacrolimus. Her chest radiograph (not shown) showed basilar pulmonary masses, which were FDG avid on PET/CT image (black arrows). Histologic confirmation following a CT-guided core biopsy indicated pulmonary posttransplant lymphoproliferative disease.