CD4 and chondrosarcoma: The number of CD4+ T cells detected ranged between 0.0 and 7.9 lymphocytes per high-power field (mean n=0.16 ± 1.0, n=61), whereas that of CD8+ T cells ranged between 0.0 and 52 lymphocytes per high-power field (mean n=5.0 ± 11, n=62) in chondrosarcoma (conventional and dedifferentiated combined).