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ERG immunostaining in other cancers. (A) Positive lymphovascular invasion (LVI) distinguishing from retraction artifact by highlighted endothelial nuclei of vascular wall in breast cancer. (B) LVI showing tumor cells protruding into a lymphovascular space in gastric carcinoma. (C) Tumor cells attached to the vascular wall distinguishing from retraction artifact in squamous cell carcinoma of thyroid gland.
