|
| A pleomorphic adenoma of parotid gland is seen here at high magnification next to a portion of adjacent normal parenchyma at the upper right. The neoplasm is a mixed proliferation of both ductal epithelium, myoepithelial cells, and a hyaline - chondroid - myxomatous stroma. Infrequently, a carcinoma can arise in a pleomorphic adenoma. The facial nerve is nearby and can be involved, making a nerve graft necessary with tumor excision. |
 |