Cutar cutar sankarar jini mai tsanani (ALL) wata nau'in ciwon daji ce da ke shafar fararen jini, musamman lymphocytes. Ana siffanta shi da rashin kulawa da girma na ƙwayoyin lymphocytes marasa girma a cikin kasusuwa da sauran gabobin da ke haifar da jini. Kalmar "m" tana nufin saurin ci gaba da cutar, kuma "lymphocytic" yana nuna cewa ciwon daji yana rinjayar lymphocytes. Ciwon sankarar bargo na nufin ciwon daji na jini ko kuma kasusuwa, kuma "mai tsanani" yana nuna cewa cutar tana ci gaba da sauri kuma tana buƙatar magani cikin gaggawa.