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skos:definition |
MSH: A neoplasm of prolymphocytes affecting the blood, bone marrow, and spleen. It is characterized by prolymphocytes exceeding 55% of the lymphoid cells in the blood and profound splenomegaly.,NCI: A malignant B-cell lymphoproliferative process affecting the blood, bone marrow, and spleen. The B-prolymphocytes are medium-sized, round lymphoid cells with prominent nucleoli. The B-prolymphocytes must exceed 55% of lymphoid cells in the blood. Cases of transformed chronic lymphocytic leukemia (CLL) and CLL with increased prolymphocytes are excluded. The prognosis is poor. (WHO, 2001)
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