Utility of Sox10 Labeling in Metastatic Breast Carcinomas

Sox10 labeling by immunohistochemistry has been primarily reported in tumors of neural crest origin, such as nerve sheath tumors and melanoma. However, Sox10 also labels primary breast carcinomas, particularly those with the basal-like, triple negative phenotype. However, the utility of Sox10 labeling in metastatic breast carcinomas has not been reported. Here, we prospectively evaluated Sox10 labeling in surgically resected metastatic breast carcinomas from 26 patients sampled on tissue microarrays.

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