The young cell to which the T-lymphocyte reverts; lymphoblasts secrete lymphokines.
Poorly differentiated (immature) blood cells which when seen in excess can be can be indicative of leukemia.
A lymphocyte which has been stimulated to divide by an antigen.
The immature precursor of the mature lymphocyte.
A lymphocyte that has gotten larger after being stimulated by an antigen. Lymphoblasts look like immature lymphocytes, and were once thought to be precursor cells.
Lymphoblasts are immature lymphocyte which typically differentiate to form normal lymphocyte but which proliferate uncontrollably in leukemia. In speaking about leukemia, "blast" is the short name used for lymphoblasts.
