title: The role of PET in lymphoma.
abstract: Malignant lymphomas are a heterogeneous group of diseases whose treatment and prognosis depend on accurate staging and evaluation of histologic features. The conventional imaging procedure is CT; however, nuclear medicine imaging has also had a prominent role. Single-photon imaging with 67Ga-citrate has been widely used for lymphomas. PET with 18F-FDG has gained a role in the staging and follow-up of lymphomas, largely replacing gallium as the nuclear medicine study of choice. 18F-FDG PET has proved useful in the staging and follow-up of Hodgkin's disease and non-Hodgkin's lymphoma (especially more aggressive types), and the widespread use of PET/CT has also increased the sensitivity and specificity. Its usefulness for the staging of slow-growing lymphomas has not been established. After the basics of staging and classification of lymphomas have been outlined, this article will review the role of 18F-FDG PET in the management of patients with lymphoma. PET tracers other than (18)F-FDG, such as positron-emitting isotopes of gallium and the cellular proliferation marker 18F-3'-deoxy-3'-fluorothymidine, will be discussed and future directions for PET in lymphoma proposed.
authors.affiliation: Nuclear Medicine Service, Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.
authors.forename: Yuliya S
authors.initials: YS
authors.lastname: Jhanwar
authors.forename: David J
authors.initials: DJ
authors.lastname: Straus
mesh_terms: D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D005710:Gallium Radioisotopes; D006689:Hodgkin Disease / Q000175:diagnosis*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis*; D008495:Medical Oncology / Q000379:methods*; D009367:Neoplasm Staging / Q000379:methods*; D049268:Positron-Emission Tomography / Q000379:methods*; D011379:Prognosis; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D005710:Gallium Radioisotopes; D019788:Fluorodeoxyglucose F18