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Pathological findings showed irregularly atypical ductal hyperplasia (black arrow) with small calcification (white arrow) in the inside of tumor.
a. Magnification 40× (H.E. stain), b. Magnification 100× (H.E. stain), c. Magnification 40× (Von Kossa stain), d. Magnification 100× (Von Kossa stain)
