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a SDC (top, arrow) lined by 1–2 layers of low cuboidal/columnar epithelium and juxtaposed to normal excretory duct epithelium (bottom) consisting of columnar luminal and cuboidal abluminal cells (×400). b Cyst lining exhibiting oncocytic metaplasia (×400). c Cyst lining exhibiting mucous cell metaplasia (×400). d Cyst lining exhibiting squamous metaplasia (×400). e Cyst lining exhibiting ciliated cell metaplasia (×400). f Cyst lining exhibiting apocrine-like metaplasia (×400)
