fuckyeahmolecularbiology:

ALL (Acute Lymphocytic Leukemia) is a disease of the lymphocytes, white blood cells that fight off infection; immature lymphocytes start rapidly multiplying, crowding out the normal reproduction of normal blood cells such as red blood cells, platelets and mature white blood cells that fight infection. The abnormal cells are carried through the bloodstream to major organs and the brain, where they multiply.

fuckyeahmolecularbiology:

ALL (Acute Lymphocytic Leukemia) is a disease of the lymphocytes, white blood cells that fight off infection; immature lymphocytes start rapidly multiplying, crowding out the normal reproduction of normal blood cells such as red blood cells, platelets and mature white blood cells that fight infection. The abnormal cells are carried through the bloodstream to major organs and the brain, where they multiply.