Pre-T chronic lymphocytic leukemia with common acute lymphoblastic leukemia antigen. A new immunologic variant

Chronic lymphocytic leukemia (CLL) is a B cell disorder but occasionally may have the characteristics of a T cell and rarely as a dual T and B cell. A case of pre- T cell and rarely as a dual T and B cell. A case of pre-T CLL with common acute lymphoblastic leukemia antigens is presented. The markers Studies of the bone marrow lymphocytes were +HTLA, +cALL, +EAC, +Ia, -TdT, -E and peripheral blood lymphocytes were +HTLA, +Ia, -cAll, -EAC, -TdT, -E. The poor course of our patient suggests that more detail subtyping of CLL to identify similar subtype may provide additional prognostic information.