Table 2.

Expected immunohistochemical expression patterns for histiocytic sarcoma

Tissue type	Expression pattern
Snap-frozen tissue	CD1+ CD4 − CD11c+ CD11d − MCH II+ Thy−1 +/−
Formalin-fixed tissue	CD3 − CD11d − CD18 + CD45 RA − CD79a − E-cadherin −