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Description: A – Tumour cells arranged in lobules (H&E stain 40x), B – Tumour cells arranged in nests, islands, trabeculae, and organoid pattern (H&E stain 100x), C - Perineural and intraneural invasion (H&E stain 100x), D – Tumour cells exhibiting round to ovoid nuclei with salt and pepper chromatin (H&E stain 400x)
