Pleomorphic Adenoma Prevalence — NDEB AFK MCQ
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Correct answer: C — Pleomorphic adenoma (benign mixed tumour)
Pleomorphic adenoma (PA, benign mixed tumour) is the most common salivary gland tumour overall, accounting for approximately 60-70% of parotid tumours and approximately 50% of minor salivary gland tumours. It is characterised histologically by a mixture of epithelial (ductal) and myoepithelial cells in a variable mesenchymal-like stroma (chondroid, myxoid, fibrous). It presents as a painless, slow-growing, mobile, firm mass. Treatment is superficial parotidectomy (for parotid) or excision with a margin (for minor glands). Recurrence rate is 1-5% after adequate excision.
Reference: Neville – Oral and Maxillofacial Pathology, 4th ed., 2016