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The Egyptian Journal of Otolaryngology
Fig. 6 | The Egyptian Journal of Otolaryngology

Fig. 6

From: Ectopic upper third molar embedded in a dentigerous cyst of the maxillary sinus: a case report and literature review

Fig. 6

An immunohistochemical study shows: A S100-positive Langerhans cell numbers in the lining epithelial and subepithelial connective tissues confirmed the association of high-grade inflammation and thick lining epithelium with the increased Langerhans cell number in a dentigerous cyst. B CD68 expression in Langerhans cells was present in defense mechanisms with the release of pro-inflammatory cytokines, which is responsible for inducing the continued proliferation of cystic epithelium. C CD1a-positive Langerhans cell numbers in the lining epithelial and subepithelial connective tissues confirmed the association of inflammation and thick lining epithelium with the increased Langerhans cell number in a dentigerous cyst (magnification × 10)

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