From: Primary histiocytic sarcoma arising in the head and neck with predominant spindle cell component
IM/US** | Case | HS | LCS | IDCS | FDCS |
---|---|---|---|---|---|
Lysozyme | ++ | ++ | + | + | + |
CD163 | ++ | N/A | N/A | N/A | N/A |
CD68 | ++ | ++ | + | + | + |
S-100 | + | + | ++ | ++ | + |
CD1a | - | - | ++ | - | - |
CD21 | - | - | - | - | ++ |
CD23 | - | - | - | - | ++ |
EMA | - | - | - | - | + |
Fascin | N/A | - | - | - | + |
Clusterin | N/A | - | - | - | ++ |
CD45 | + | + | + | + | ++ |
CD3 | - | - | - | - | - |
CD4 | + | + | + | - | - |
CD20 | - | - | - | - | - |
MHC II | N/A | + | ++ | + | - |
Lysosomes | Numerous | Numerous | Variable | Scattered | Scattered |
Birbeck granules | - | - | ++ | - | - |
Desmosomes | - | - | - | - | ++ |
IDCP*** | - | - | - | ++ | - |