Leucopenia as presentation of sarcoidosis.

A 20-year-old male Saudi national presented initially with leucopenia and splenomegaly. The absence of other signs of disease, progressive pancytopenia and normal bone marrow examination posed a diagnostic dilemma as to the cause of hypersplenism. Subsequently, the patient had splenectomy the histopathological appearance of which was non-caseating granuloma. A high level of angiotension converting enzyme (ACE) was found in this patient. Sarcoidosis is a recognized cause of hypersplenism, and though the disease is not yet widely described in this part of the world. It is the most probable diagnosis in this patient.