Key result
ERG staining effectively identifies endothelial differentiation, demonstrating triple positivity in ~75% of angiosarcoma cases.
Why the study?
The effectiveness of immunohistochemical vascular markers CD31, CD34, FLI1, and ERG in diagnosing vascular soft tissue sarcomas was not well established.
Comparison
Immunohistochemical staining for CD31, CD34, FLI1, and ERG markers
Design
Descriptive observational study at a single cancer center
Authors
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ERG aids vascular sarcoma diagnosis via clean nuclear staining; leaves open routine panel adoption pending prospective validation.
Observational (n=86)
No
ERG is a highly effective immunohistochemical marker for identifying endothelial differentiation in vascular soft tissue sarcomas.
Naeem et al. (2018) conducted an observational in Soft tissue sarcomas (n=86). Immunohistochemical markers (CD31, CD34, FLI1, ERG) was evaluated on Marker positivity. ERG immunohistochemical stain was highly effective for endothelial differentiation, with triple positivity (CD34, CD31, ERG) seen in 6 of 8 angiosarcoma cases tested with the complete panel.
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