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Montes de Jesus F, Vergote V, Noordzij W, Dierickx D, Dierckx R, Diepstra A, Tousseyn T, Gheysens O, Kwee T, Deroose C, Glaudemans A. Semi-Quantitative Characterization of Post-Transplant Lymphoproliferative Disorder Morphological Subtypes with [ 18F]FDG PET/CT. J Clin Med 2021; 10:jcm10020361. [PMID: 33477971 PMCID: PMC7835947 DOI: 10.3390/jcm10020361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/08/2021] [Accepted: 01/14/2021] [Indexed: 01/22/2023] Open
Abstract
Background: Post-transplant lymphoproliferative disorder (PTLD) is a complication of organ transplantation classified according to the WHO as nondestructive, polymorphic, monomorphic, and classic Hodgkin Lymphoma subtypes. In this retrospective study, we investigated the potential of semi-quantitative 2-[18F]fluoro-2-deoxy-D-glucose ([18F]FDG) PET/computed tomography (CT)-based parameters to differentiate between the PTLD morphological subtypes. Methods: 96 patients with histopathologically confirmed PTLD and baseline [18F]FDG PET/CT between 2009 and 2019 were included. Extracted semi-quantitative measurements included: Maximum, peak, and mean standardized uptake value (SUVmax, SUVpeak, and SUVmean). Results: Median SUVs were highest for monomorphic PTLD followed by polymorphic and nondestructive subtypes. The median SUVpeak at the biopsy site was significantly higher in monomorphic PTLD (17.8, interquartile range (IQR):16) than in polymorphic subtypes (9.8, IQR:13.4) and nondestructive (4.1, IQR:6.1) (p = 0.04 and p ≤ 0.01, respectively). An SUVpeak ≥ 24.8 was always indicative of a monomorphic PTLD in our dataset. Nevertheless, there was a considerable overlap in SUV across the different morphologies. Conclusion: The median SUVpeak at the biopsy site was significantly higher in monomorphic PTLD than polymorphic and nondestructive subtypes. However, due to significant SUV overlap across the different subtypes, these values may only serve as an indication of PTLD morphology, and SUV-based parameters cannot replace histopathological classification.
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Affiliation(s)
- Filipe Montes de Jesus
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (W.N.); (R.D.); (A.G.)
- Correspondence:
| | - Vibeke Vergote
- Department of Hematology, University Hospitals Leuven, 3000 Leuven, Belgium; (V.V.); (D.D.)
| | - Walter Noordzij
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (W.N.); (R.D.); (A.G.)
| | - Daan Dierickx
- Department of Hematology, University Hospitals Leuven, 3000 Leuven, Belgium; (V.V.); (D.D.)
| | - Rudi Dierckx
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (W.N.); (R.D.); (A.G.)
| | - Arjan Diepstra
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands;
| | - Thomas Tousseyn
- Department of Pathology University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Olivier Gheysens
- Department of Nuclear Medicine, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium;
| | - Thomas Kwee
- Department of Radiology, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands;
| | - Christophe Deroose
- Department of Nuclear Medicine, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Andor Glaudemans
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (W.N.); (R.D.); (A.G.)
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