Pleomorphic adenoma of salivary gland

The left panel demonstrates a low power view of a well circumscribed tumor surrounded by a fibrous capsule and adjacent serous salivary gland. The right panel demonstrates the epithelial and myoepithelial components. The myxoid stroma (arrow) contains myoepithelial cells that have separated from the main epithelial nests. Occasional chondroid metaplasia may be seen in the stroma.