Home > Hematology > Chronic Lymphocytic Leukemia Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Jul 20, 2009 by TimCall, Views: 5072 Chronic Lymphocytic Leukemia: Dr. Tim Call, a hematologist/oncologist at the Mayo Clinic, discuss CLL- Chronic Lymphocytic Leukemia. The average age of diagnsosis is in the 60's. It is frequently found on blood test , with a high white blood count. A confirmatory test using flow cytometry is usually performed. Staging includes physical exam, blood tests- LDH and beta 2 microglobulin.