‘Common’ acute lymphoblastic leukaemia (cALL)Glossary ‘Common’ acute lymphoblastic leukaemia (cALL) A sub-type of acute lymphoblastic leukaemia affecting cells early in the B lymphocyte family which accounts for about 80 per cent of all acute lymphoblastic leukaemias. < Back to glossary index Print Related content: Acute lymphoblastic leukaemia