We present an unusual hematologic manifestation of tuberculosis in a hemodialysis patient. A 37-year-old man was admitted because of fever, anorexia and weight loss which developed 3 months earlier. He previously received a renal transplant and commenced hemodialysis 1 year ago. Physical examination revealed hepatomegaly, and peripheral blood counts revealed pancytopenia. The delayed bone marrow biopsy demonstrated marked hemophagocytosis, granuloma and tubercle bacilli by the acid-fast stain. The clinical course was fatal and he died without definite treatment. Through this case, we would like to recommend early bone marrow biopsy and antituberculosis therapy if fever of unknown origin, anorexia, weight loss, hepatomegaly and pancytopenia develop in patients undergoing dialysis.