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Immunophenotyping. (a) M-actin, (b) p63, (c) cytokeratin 5/6 and (d) cladesmon 1 staining in AN with papillomatosis pattern and (e) p63 and (f) M-actin staining in AN with adenosis pattern (magnification, ×20). M-actin, α-smooth muscle actin; AN, adenoma of the nipple.
