Chediak-Higashi Syndrome With Epstein-Barr Virus Triggered Hemophagocytic Lymphohistiocytosis: A Case Report.

Chediak-Higashi syndrome (CHS) is a rare, autosomal-recessive disorder characterized by oculocutaneous albinism, recurrent bacterial infections, progressive neurologic abnormalities, coagulation defects and a high risk of developing hemophagocytic lymphohistiocytosis characterized by pancytopenia, high fever, and lymphohistiocytic infiltration of liver, spleen, and lymph nodes. Treatment of accelerated-phase CHS is difficult with poor prognosis. Here, we report a two-and-a-half-year-old male child who was diagnosed with Chediak-Higashi Syndrome based on silvery hair, pathognomonic hair microscopy and giant azurophilic granules in granulocytes. The patient was in advanced stage of HLH induced by an Epstein-Barr virus (EBV) infection and given etoposide, cyclosporine and dexamethasone according to hemophagocytic lymphohistiocytosis (HLH)-2004 protocol but did not survive.