Immune cells subsets were prospectively analyzed after localized radiothera
py (LRT). LRT reduced the levels of all lymphocyte subsets, with B-cells an
d naive T-cells being most sensitive. Lymphocyte function was suppressed, b
ut still within the normal range. Rapid recovery of cytotoxic T-cells/natur
al killer cells after LRT and the functional suppression within normal leve
ls explains the low incidence of infections after LRT. (C) 1999 Elsevier Sc
ience Ireland Ltd. All rights reserved.