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Grade 1 carcinoma - diagnosis confirmed using CK5/6 immunohistochemistry



Note the benign ducts with two cell layers top right and bottom left just outside the circle and suspicious cells within the circle.
'Mouse-over' - CK5/6 staining positive in benign duct highlighting the myoepithelial cells and negative in the tumour area


Grade 1 carcinoma - diagnosis confirmed using CK5/6 immunohistochemistry


Detail from image above - 'Mouse over' for CK5/6 stain.
Grade 1 carcinoma - diagnosis confirmed using CK5/6 immunohistochemistry

See also Immunohistochemistry - benign and malignant tubular proliferations


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