Non‐immunoglobulin‐bearing‘B’ Lymphocytes in Chronic Lymphatic Leukaemia?

S ummary . Log‐normal ranges for the incidence of immunoglobulin‐bearing lymphocytes in human peripheral blood are described. Twenty‐five cases of chronic lymphatic leukaemia have been investigated and absolute numbers of cells have been ascertained and related to clinical details. It is suggested that most CLL patients suffer from a disorder of the B cell population, including many in which non‐immunoglobulin‐bearing cells predominate.