From: CD34 + tumours of the orbit including solitary fibrous tumours: a six-case series
Solitary fibrous tumour | Fibrous histiocytoma | Haemangiopericytoma | |
---|---|---|---|
Histopathology | Spindle shaped cells with scanty eosinophilic cytoplasm | Foamylike histiocytes and spindle-shaped fibroblasts-like cells arranged in a storiform pattern | Staghorn sinusoidal blood vessels with individual tumour cells surrounded by reticulin fibers |
CD34 | High reactivity | Reactivity? | High reactivity, less diffusely and weaker compared with SFTs |
Vimentin | High reactivity | - | High reactivity |
S-100 | Negative | - | Negative |
EMA | Negative | - | Negative |
CD68 | - | Reactivity | - |