title: Prognostic value of positron emission tomography in the evaluation of post-treatment residual mass in patients with Hodgkin's disease and non-Hodgkin's lymphoma.
abstract: The prognostic value of 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) in the assessment of post-treatment residual masses in patients with Hodgkin's disease (HD) or non-Hodgkin's lymphomas (NHL) was evaluated. We prospectively studied 58 patients with HD (n = 43) or NHL (n = 15) who had post-therapeutic complete remission with residual masses (CRu) indicated by computerized tomography. Analysis of 62 residual locations by FDG-PET was performed separately for HD and NHL. Patients with a PET-positive residual mass [standardized uptake value (SUV) > 3] had a recurrence rate of 62.5% (5/8 patients), whereas patients with PET-negative residual mass (SUV < or =3.0) showed a recurrence rate of 4% (2/50 patients, P = 0.004). A positive FDG-PET study correlated with a significantly poorer progression-free survival (P < 0.00001). No recurrence occurred in any of the 39 HD patients with a negative PET scan (negative predictive value, 100%). Four out of four NHL patients with a positive PET study relapsed (positive predictive value, 100%). In conclusion, FDG-PET is a suitable non-invasive method with a high degree of accuracy in the prediction of early recurrence in lymphoma patients with CRu.
authors.affiliation: Department of Internal Medicine I, University Hospital Carl Gustav Carus at the Dresden University of Technology, Fetscherstrasse 74, D-01307 Dresden, Germany. naumann@mk1.med.tu-dresden.de
authors.forename: R
authors.initials: R
authors.lastname: Naumann
authors.forename: A
authors.initials: A
authors.lastname: Vaic
authors.forename: B
authors.initials: B
authors.lastname: Beuthien-Baumann
authors.forename: J
authors.initials: J
authors.lastname: Bredow
authors.forename: J
authors.initials: J
authors.lastname: Kropp
authors.forename: T
authors.initials: T
authors.lastname: Kittner
authors.forename: W G
authors.initials: WG
authors.lastname: Franke
authors.forename: G
authors.initials: G
authors.lastname: Ehninger
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D018572:Disease-Free Survival; D005260:Female; D019788:Fluorodeoxyglucose F18; D005500:Follow-Up Studies; D006689:Hodgkin Disease / Q000000981:diagnostic imaging*; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012008:Recurrence; D014055:Tomography, Emission-Computed
chemical_list: D019788:Fluorodeoxyglucose F18