Pleomorphic adenoma arises from______________?
Correct answer: A. Myoepithelial cells
- A. Myoepithelial cells
- B. Aciner cells
- C. Connective tissue
- D. Stem cells
Explanation
Pleomorphic adenoma contains both ductal epithelial and myoepithelial components, with the myoepithelial cells contributing greatly to its varied, or pleomorphic, stroma and pattern. Among the listed choices, myoepithelial cells are the best answer, although the tumour is not derived from only one cell type.
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