FDG- PET in Lymphoma: Nuclear Medicine Perspective

Positron emission tomography (PET) is a sectional molecular imaging procedure taht allows evaluation of the metabolism at a molecular and cellular level. For a PET scan, the patient is injected with radiotracer, such as 18F-fluorodeoxyglucoese (FDG). FDG PET-computed tomography has become an estblished modality for metabolic staging and plays an important role in the major steps of evaluation and treatment of most lymphoma subtypes, with significant impact in the initial staging, psttherapy evaluation, and suspect of relapse of disease. However, whenever the information of PET results in translated to channing treatment, especially in cases of further treatment, biopsy confirmition should always be made when possible.