Figure 3.

Salivary gland-like tumours without myoepithelial differentiation. (A) Acinic cell carcinoma (AcCC) with microglandular growth; (B) cells have a granular eosinophilic to amphophilic cytoplasm; some cells also show foamy cytoplasm (courtesy of Dr IO Ellis). (C) Breast oncocytic carcinoma (OC) is composed of cells with granular eosinophilic cytoplasm; (D) anti-mitochondrion antibody strongly stains this case of breast OC. (E) Low grade mammary mucoepidermoid carcinoma (MEC) composed of neoplastic nests outlined by basaloid cells and centrally containing epidermoid and mucous secreting cells; (F) high power magnification of high grade mammary MEC showing a complex admixture of basaloid and epidermoid elements and mucous secreting cells.