期刊
PATHOLOGY RESEARCH AND PRACTICE
卷 218, 期 -, 页码 -出版社
ELSEVIER GMBH
DOI: 10.1016/j.prp.2020.153321
关键词
Hemophagocytic lymphohistiocytosis (HLH); Adult HLH; Secondary HLH; Diagnosis; Specificity; HLH-2004 criteria
类别
Originally designed for pediatric HLH, the HLH-2004 criteria have been used to diagnose adult secondary HLH, raising questions about their applicability. Current evidence is lacking on the use of these criteria in adult secondary HLH cases.
The HLH-2004 criteria were initially conceived as inclusion criteria for a clinical trial investigating therapy for (largely primary) pediatric hemophagocytic lymphohistiocytosis (HLH). These criteria have since been extrapolated to diagnose adult secondary HLH despite their questionable generalizability. It remains unclear whether these diagnostic criteria are truly applicable among adult secondary cases, and rigorous evidence for their use among such patients is lacking. This review critically examines the utility of the HLH-2004 criteria for the diagnosis of adult secondary HLH. It is framed as a reappraisal of each of the criteria's individual components, with an assessment of the relevance of, and/or evidence regarding, each. There are clear limitations to these criteria as they apply to adult secondary HLH, however they may help guide our understanding of the disease to some extent. Some new paradigms are emerging for the diagnosis of adult secondary HLH, however these too are limited by the difficulties inherent in formulating specific criteria for a very non-specific syndrome, which lacks any single gold-standard diagnostic test.
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