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Fig. 3 | BMC Oral Health

Fig. 3

From: Ossifying fibrous epulis as an IgG4-related disease of the oral cavity: a case report and literature review

Fig. 3

Histopathological findings for the submandibular lymph nodes. A Hyperplasia of the lymphoid follicles, which are variously sized accompanied by germinal centres (× 100, HE staining). B Infiltration by many inflammatory cells (mainly plasma cells) between follicles (× 400, HE staining). C The IgG4/IgG plasma cell ratio is approximately 87.3% (× 200, immunostaining)

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