• Hanane Zahir, Jihane Belkhir, Hanane Mouhib, Mustapha Ait Ameur, and Mohammed Chakour.
• Laboratory of Hematology, Avicenna Hospital of Marrakesh, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakesh, Morocco
• Turk J Med Sci. 2019 Oct 24; 49 (5): 1332-1335.

Background/AimHemophagocytic lymphohistiocytosis (HLH) is a clinical, biological, and pathological entity that is rare but has certain morbidity that may be life-threatening. This work aims to establish a focus on the hemophagocytic lymphohistiocytosis and analyze different aspects of diagnosis while emphasizing the biological data.Materials And MethodsWe report the results of a retrospective study conducted in the hematology department of Avicenna Hospital in Marrakesh. Thirty-one patients with hemophagocytic lymphohistiocytosis were enrolled.ResultsThe clinical presentation was dominated by fever and deterioration of the general state for almost all our patients. Splenomegaly was objectified in 90% of the patients. Hepatomegaly, lymphadenopathy, and hemorrhagic manifestations were observed in almost 50% of the patients. Biological assessments revealed bi- or pancytopenia in 96% of the patients, and coagulation disorders in 51% of the patients. On the other hand, hyperferritinemia was found in 84% of the patients, and hepatic cytolysis and hypertriglyceridemia in half of the patients. Hemophagocytosis was observed in all bone marrow samples taken from our patients. Concerning the evolution of patients, in 38.5% of the patients, the evolution was favorable with regression of clinical and biological signs. Twenty six percent of the patients had died, mainly from multiple organ failure and disseminated intravascular coagulation.ConclusionHLH is a diverse condition with many causes and is likely to be under-recognized, which contributes to its high morbidity and mortality. Clinicians need to be able to recognize the signs and symptoms commonly seen in HLH and actively pursue this diagnosis in the cases of undiagnosed febrile illness with multiorgan dysfunction. Early recognition is crucial for any reasonable attempt at curative therapy to be made.This work is licensed under a Creative Commons Attribution 4.0 International License.

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