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Sensitive Findings

Hemophagocytic Lymphohistiocytosis: Sensitivity and Specificity

Introduction: A rare disease characterized by bone marrow macrophages (histiocytes) devouring red and white blood cells. Can be caused by certain viral infections (e.g. HIV, EBV), can be inherited, or can rarely be related to malignancy (lymphoma or leukemia).

Note that a big differential diagnosis is Adult-Onset Still's disease, which can also be associated with high ferritin and even secondary HLH.

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Tags: Hematologic Tag this Diagnosis.

The sensitivity and specificity of findings for Hemophagocytic Lymphohistiocytosis are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
Sensitive Findings
FindingResult SensitivitySpecificity
[ + ] Decreased Glycosylated Ferritin + 0 - 100%76%