The incidences of B symptoms (7.9%), anemia (20.6%), lymphadenopathy (1.6%), splenomegaly (0%) in MALT group were statistically lowerthan those in NMZL and SMZL groups. The MALT group also hadthe rates of low hemoglobin concentration (20.6%), low platelet count (4.8%), high white blood cell count (9.5%), myeloid cell morphological disorder (11.1%), increased density of bone marrow cells (7.9%), bone marrow invasion (11.1%) and positive-Ki67>30% (11.1%) lower than those of NMZL and SMZL groups.