E Pelosi1, A Skanjeti, D Penna, V Arena. 1. Centro PET, IRMET SpA, Via Onorato Vigliani 89/A, 10138, Torino, Italy. e.pelosi@irmet.com
Abstract
PURPOSE: Fever of unknown origin (FUO) is a diagnostic challenge for the wide range of possible causes involved. The aim of our work was to evaluate the role of [(18)F]-fluorodeoxyglucose positron emission tomography computed tomography ([¹⁸F]-FDG-PET/CT) in managing patients with classical FUO. MATERIALS AND METHODS: Twenty-four consecutive patients (16 women, eight men; mean age, 56.5 years) with a diagnosis of FUO based on routine investigations were retrospectively studied. All underwent [¹⁸F]-FDG-PET/CT, which was considered true positive when the result was in agreement with the final diagnosis. RESULTS: A final diagnosis was reached in 17 of 24 patients (vasculitis, n=5; autoimmune disorder, n=2; neoplasm, n=3; infectious disease, n=6; biliary microlithiasis, n=1). In the remaining seven cases, no final diagnosis was established. PET-CT was useful in identifying aetiology in 11 patients, showing a diagnostic yield of 46% (11/24). Among the 11 cases with a negative PET scan, 10 did not show a worsening of the clinical condition. CONCLUSIONS: This study underlines the crucial role of [¹⁸F]-FDG-PET/CT in managing patients with FUO. If prospective trials on this topic confirm the present findings, PET/CT should be incorporated in the routine diagnostic work-up of patients with classical FUO.
PURPOSE:Fever of unknown origin (FUO) is a diagnostic challenge for the wide range of possible causes involved. The aim of our work was to evaluate the role of [(18)F]-fluorodeoxyglucose positron emission tomography computed tomography ([¹⁸F]-FDG-PET/CT) in managing patients with classical FUO. MATERIALS AND METHODS: Twenty-four consecutive patients (16 women, eight men; mean age, 56.5 years) with a diagnosis of FUO based on routine investigations were retrospectively studied. All underwent [¹⁸F]-FDG-PET/CT, which was considered true positive when the result was in agreement with the final diagnosis. RESULTS: A final diagnosis was reached in 17 of 24 patients (vasculitis, n=5; autoimmune disorder, n=2; neoplasm, n=3; infectious disease, n=6; biliary microlithiasis, n=1). In the remaining seven cases, no final diagnosis was established. PET-CT was useful in identifying aetiology in 11 patients, showing a diagnostic yield of 46% (11/24). Among the 11 cases with a negative PET scan, 10 did not show a worsening of the clinical condition. CONCLUSIONS: This study underlines the crucial role of [¹⁸F]-FDG-PET/CT in managing patients with FUO. If prospective trials on this topic confirm the present findings, PET/CT should be incorporated in the routine diagnostic work-up of patients with classical FUO.
Authors: L Federici; C Blondet; A Imperiale; J Sibilia; J-L Pasquali; F Pflumio; B Goichot; G Blaison; J-C Weber; D Christmann; A Constantinesco; E Andrès Journal: Int J Clin Pract Date: 2008-05-08 Impact factor: 2.503
Authors: Gijsbert J Blokhuis; Chantal P Bleeker-Rovers; Marije G Diender; Wim J G Oyen; Jos M Th Draaisma; Lioe-Fee de Geus-Oei Journal: Eur J Nucl Med Mol Imaging Date: 2014-05-29 Impact factor: 9.236
Authors: Hussein Mahajna; Keren Vaknin; Jennifer Ben Shimol; Abdulla Watad; Arsalan Abu-Much; Naim Mahroum; Ora Shovman; Yehuda Shoenfeld; Howard Amital; Tima Davidson Journal: Int J Environ Res Public Health Date: 2021-05-18 Impact factor: 3.390