1. Lakhani SR, Schnitt SJ, Tan PH, van deVijver MJ. WHO classification of tumors of the breast. Lyon: IARC; 2012.
2. Tavassoli FA. Pathology of the breast. 2nd ed. New York, NY: McGraw-Hill; 1999.
3. Moinfar F. Essentials of diagnostic breast pathology. Berlin: Springer; 2007. p. 236.
4. Leibl S, Gogg-Kammerer M, Sommersacher A, Denk H, Moinfar F. Metaplastic breast carcinoma: are they of myoepithelial differentiation? Immunohistochemical profile of the sarcomatoid subtype using novel myoepithelial markers. Am J Surg Pathol. 2005;29:347–53.
5. Pettinato G, Petrella G, Manco A, di Prisco B, Salvatore G, Angrisani P. Carcinoma of the breast with osteoclast-like giant cells. Fine-needle aspiration cytology, histology and electron microscopy of 5 cases. Appl Pathol. 1984;2(3):168–78.