Hemophagocytic syndrome--should we consider it more often?

Area of Science:

• Hematology
• Immunology
• Internal Medicine

Background:

• Hemophagocytic syndrome (HPS) is a rare, life-threatening condition characterized by immune dysregulation.
• It involves overactive histiocytes and macrophages, leading to fever, hepatosplenomegaly, and cytopenia.
• HPS has familial (genetic) and acquired forms, often triggered by infections, immunodeficiency, or malignancy.

Observation:

• This report presents a case of HPS in an adult patient.
• Extensive clinical investigation failed to identify the specific underlying cause of the HPS.
• The patient received empirical corticosteroid therapy due to the diagnostic uncertainty.

Findings:

• The patient showed a positive clinical response to empirical corticosteroid treatment.
• After 8 months of follow-up, the patient remained well with normalized laboratory parameters.
• This suggests corticosteroids can be effective even when the HPS trigger is unidentified.

Implications:

• Empirical corticosteroid therapy may be a viable treatment option for adult HPS when the underlying cause is elusive.
• This case highlights the importance of considering HPS in adults presenting with unexplained fever and cytopenia.
• Further research into HPS pathogenesis and treatment strategies is warranted.