26 January 2022>: Articles
Using a Minimal Parameter Set for Early Diagnosis of Hemophagocytic Lymphohistiocytosis in Non-European Children
Challenging differential diagnosis
Yu Nakashima B , Hiroshi Koga A*DOI: 10.12659/AJCR.934037
Am J Case Rep 2022; 23:e934037
Table 1. Diagnostic assessment of HLH-2004 criteria and the minimal parameter set in the cases of 2 infants with HLH.
Case 1 (Japanese neonate) | Case 2 (African infant) | |||
---|---|---|---|---|
Our center | Tertiary center | Our center | Tertiary center | |
Age on admission (days) | 4 | 4 | 39 | 41 |
HLH-2004 diagnostic criteria | Not fulfilled | Fulfilled | Fulfilled | Fulfilled |
Fever | Present | Present | Present | Present |
Splenomegaly | Present | Present | Present | Present |
Cytopenias in ≥2 lineages in peripheral blood | Present | Present | Present | Present |
Hyperferritinemia ≥500 μg/L | Present | Present | Present | Present |
Soluble CD25 ≥2400 U/mL | Not evaluated | Absent | Present | Present |
Hypertriglyceridemia ≥265 mg/dL and/or hypofibrinogenemia ≤1.5 g/L | Absent | Present | Present | Present |
Hemophagocytosis in tissue biopsy | Not evaluated | Absent | Not evaluated | Present |
Low or absent NK-cell activity | Not evaluated | Present | Not evaluated | Present |
Minimal parameter set | Fulfilled | Fulfilled | Fulfilled | Fulfilled |
Major criteria | ||||
Splenomegaly | Present | Present | Present | Present |
Hemophagocytosis in tissue biopsy | Not evaluated | Absent | Not evaluated | Present |
Minor criteria | ||||
Cytopenias in ≥2 lineages in peripheral blood | Present | Present | Present | Present |
Hyperferritinemia ≥1000 μg/L | Present | Present | Absent | Present |
Hypertriglyceridemia ≥265 mg/dL and/or hypofibrinogenemia ≤1.5 g/L | Absent | Present | Present | Present |
HLH – hemophagocytic lymphohistiocytosis; * A diagnosis of HLH can be established if ≥5 of 8 criteria are fulfilled.; ** A diagnosis of HLH can be established if 2 major criteria, 1 major and ≥1 minor criteria, or 3 minor criteria are fulfilled. |