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Fig. 5

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Macroscopic and histological analysis of the surgical material. (A) Macroscopic picture of the enucleated cyst (arrow) with 3M (dotted arrow). (B) Microscopic image (HES X 25): the non-keratinizing squamous cyst lining (arrow) and the respiratory sinus lining (arrowhead). (C) Microscopic image (HES X 100): resorptive granuloma-like inflammation with macrophages and cholesterol crystals.

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