Ultrastructure of lymphocytes in a case of pertussis syndrome.


A case of an 11-month-old black male with pertussis syndrome is described. He manifested a lymphocytic leukemoid reaction characterized by marked lymphocytosis and the presence of lymphoblasts in his circulation. A bone marrow examination did not reveal any evidence of acute leukemia. Electron microscopic examination of peripheral blood lymphoid cells… (More)


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