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.