Fig. 4. Histologic features of necrotizing sialometaplasia in case 2. (A) Extensive necrosis with lobular architecture preserved (H&E staining, ×100). (B) Higher-power view showing minor salivary gland with acinar necrosis (white arrowheads) and squamous metaplasia (black arrows) (H&E staining, ×200). (C, D) Sections showing mild squamous metaplasia (black arrows) with mixed inflammatory infiltrate (H&E staining, ×400).
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