Conclusion
In conclusion, Klebsiella pneumonia can be complicated by a variety of
inflammatory sequelae, including HLH. It is imperative to note that
diagnosis of HLH may be under recognized in the setting of sepsis, and
the timeframe required to achieve complete diagnostic testing can be
exorbitant in critically ill patients. Treatment in patients with HLH
secondary to sepsis should be weighed against the risk of further
immunosuppression.