Domenico Albano1, Giovanni Bosio2, Raffaele Giubbini3, Francesco Bertagna3. 1. Nuclear Medicine, Spedali Civili di Brescia, P. le Spedali Civili, 1, 25123, Brescia, Italy. doalba87@libero.it. 2. Nuclear Medicine, Spedali Civili di Brescia, P. le Spedali Civili, 1, 25123, Brescia, Italy. 3. Nuclear Medicine, University of Brescia and Spedali Civili Brescia, Brescia, Italy.
Abstract
PURPOSE: Langerhans cell histiocytosis (LCH) is a rare hematological disorder for which the utility of18F-FDG PET/CT is unclear. Our aim was to explore the metabolic features of LCH and the possible role of18F-FDG PET/CT in LCH evaluation. MATERIALS AND METHODS: We found 17 patients with histologically proven LCH who underwent 1718F-FDG PET/CT scans for staging and 42 scans for restaging/follow-up purposes. PET/CT results were compared with those obtained from other conventional imaging modalities (bone scintigraphy, plain radiogram, computed tomography, magnetic resonance). RESULTS: 18F-FDG PET/CT was positive in 15/17 patients, and it detected 36/37 lesions; all bone and extraskeletal lesions, except for a cecal lesion, were18F-FDG-avid. Only 1/4 of the patients with lung LCH had hypermetabolic lesions. The average SUVmax of the FDG-avid lesions was 7.3 ± 6.7, the average lesion-to-liver SUVmax ratio was 3.4 ± 2.5, and the average lesion-to-blood pool SUVmax ratio was 4 ± 3.2. In comparison to other imaging methods,18F-FDG PET/CT detected additional lesions or was able to evaluate treatment response earlier in 33/74 cases; it was confirmatory in 38/74 and detected fewer lesions in 3/74 (all three with lung LCH). CONCLUSIONS: 18F-FDG PET/CT seems to be useful for evaluating LCH when compared to conventional imaging, except in pulmonary cases. It can be used both for staging and restaging purposes.
PURPOSE: Langerhans cell histiocytosis (LCH) is a rare hematological disorder for which the utility of18F-FDG PET/CT is unclear. Our aim was to explore the metabolic features of LCH and the possible role of18F-FDG PET/CT in LCH evaluation. MATERIALS AND METHODS: We found 17 patients with histologically proven LCH who underwent 1718F-FDG PET/CT scans for staging and 42 scans for restaging/follow-up purposes. PET/CT results were compared with those obtained from other conventional imaging modalities (bone scintigraphy, plain radiogram, computed tomography, magnetic resonance). RESULTS: 18F-FDG PET/CT was positive in 15/17 patients, and it detected 36/37 lesions; all bone and extraskeletal lesions, except for a cecal lesion, were18F-FDG-avid. Only 1/4 of the patients with lung LCH had hypermetabolic lesions. The average SUVmax of the FDG-avid lesions was 7.3 ± 6.7, the average lesion-to-liver SUVmax ratio was 3.4 ± 2.5, and the average lesion-to-blood pool SUVmax ratio was 4 ± 3.2. In comparison to other imaging methods,18F-FDG PET/CT detected additional lesions or was able to evaluate treatment response earlier in 33/74 cases; it was confirmatory in 38/74 and detected fewer lesions in 3/74 (all three with lung LCH). CONCLUSIONS: 18F-FDG PET/CT seems to be useful for evaluating LCH when compared to conventional imaging, except in pulmonary cases. It can be used both for staging and restaging purposes.
Authors: Jean-François Emile; Oussama Abla; Sylvie Fraitag; Annacarin Horne; Julien Haroche; Jean Donadieu; Luis Requena-Caballero; Michael B Jordan; Omar Abdel-Wahab; Carl E Allen; Frédéric Charlotte; Eli L Diamond; R Maarten Egeler; Alain Fischer; Juana Gil Herrera; Jan-Inge Henter; Filip Janku; Miriam Merad; Jennifer Picarsic; Carlos Rodriguez-Galindo; Barret J Rollins; Abdellatif Tazi; Robert Vassallo; Lawrence M Weiss Journal: Blood Date: 2016-03-10 Impact factor: 22.113
Authors: H Young; R Baum; U Cremerius; K Herholz; O Hoekstra; A A Lammertsma; J Pruim; P Price Journal: Eur J Cancer Date: 1999-12 Impact factor: 9.162
Authors: Reza Vali; Adam Alessio; Rene Balza; Lise Borgwardt; Zvi Bar-Sever; Michael Czachowski; Nina Jehanno; Lars Kurch; Neeta Pandit-Taskar; Marguerite Parisi; Arnoldo Piccardo; Victor Seghers; Barry L Shulkin; Pietro Zucchetta; Ruth Lim Journal: J Nucl Med Date: 2021-01 Impact factor: 11.082