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Figure 1 | SpringerPlus

Figure 1

From: Folate receptor alpha (FRA) expression in breast cancer: identification of a new molecular subtype and association with triple negative disease

Figure 1

FRA IHC scoring criteria.a Strong 3+ membrane staining is clearly visible at 10x. The membrane staining is intense, thick and circumferential (x10). b 2+ moderate membrane staining on the luminal borders of malignant cells in a poorly differentiated ductal carcinoma (x20). c 1+ weak membrane staining is seen on the luminal border of poorly differentiated ductal carcinoma cells. It requires 40x objective to visualize the thin, incomplete membrane staining (x40). d No membrane staining is seen in this well-differentiated ductal carcinoma (x20).

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