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ABSTRACT: Background
The hyperinflammatory condition and lymphoproliferation due to Epstein-Barr virus (EBV)-associated hemophagocytic lymphohistiocytosis (HLH) affect the detection of lymphomas by 18F-FDG PET/CT. We aimed to improve the diagnostic capabilities of 18F-FDG PET/CT by combining laboratory parameters.Methods
This retrospective study involved 46 patients diagnosed with EBV-positive HLH, who underwent 18F-FDG PET/CT before beginning chemotherapy within a 4-year timeframe. These patients were categorized into two groups: EBV-associated HLH (EBV-HLH) (n = 31) and EBV-positive lymphoma-associated HLH (EBV + LA-HLH) (n = 15). We employed multivariable logistic regression and regression tree analysis to develop diagnostic models and assessed their efficacy in diagnosis and prognosis.Results
A nomogram combining the SUVmax ratio, copies of plasma EBV-DNA, and IFN-γ reached 100% sensitivity and 81.8% specificity, with an AUC of 0.926 (95%CI, 0.779-0.988). Importantly, this nomogram also demonstrated predictive power for mortality in EBV-HLH patients, with a hazard ratio of 4.2 (95%CI, 1.1-16.5). The high-risk EBV-HLH patients identified by the nomogram had a similarly unfavorable prognosis as patients with lymphoma.Conclusions
The study found that while 18F-FDG PET/CT alone has limitations in differentiating between lymphoma and EBV-HLH in patients with active EBV infection, the integration of a nomogram significantly improves the diagnostic accuracy and also exhibits a strong association with prognostic outcomes.
SUBMITTER: Yang X
PROVIDER: S-EPMC11330599 | biostudies-literature | 2024 Aug
REPOSITORIES: biostudies-literature
Yang Xu X Lu Xia X Feng Lijuan L Wang Wei W Kan Ying Y Zhang Shuxin S Li Xiang X Yang Jigang J
Cancer imaging : the official publication of the International Cancer Imaging Society 20240818 1
<h4>Background</h4>The hyperinflammatory condition and lymphoproliferation due to Epstein-Barr virus (EBV)-associated hemophagocytic lymphohistiocytosis (HLH) affect the detection of lymphomas by <sup>18</sup>F-FDG PET/CT. We aimed to improve the diagnostic capabilities of <sup>18</sup>F-FDG PET/CT by combining laboratory parameters.<h4>Methods</h4>This retrospective study involved 46 patients diagnosed with EBV-positive HLH, who underwent <sup>18</sup>F-FDG PET/CT before beginning chemotherapy ...[more]