This leukemia type is an uncommon, distinctive lymphocytic leukemia. It occurs predominantly in the older population, and has a higher incidence in males. Cytopenias are often seen with this disease (leukopenia, anemia, thrombocytopenia, neutropenia, adn monocytopenia common). Often massive splenomegaly is seen. Symptoms are often non-specific and include fatigue, weakness, lethargy; abdominal discomfort and early satiety due to splenomegaly; and recurrent pyrogenic infections due to neutropenia -- cutaneous infections are common.
Hairy Cell Leukemia