Fig. 2
From: A large-cohort study of 2971 cases of epulis: focusing on risk factors associated with recurrence
Representative photomicrographs of four histological subtypes of epulis. (A) FFH consists of bundles of dense collagen fibers with limited inflammation. (B) Cellular fibrous tissue hyperplasia with mineralization presents in POF. (C) PG is characterized with the proliferation of endothelial cells and a large amount of inflammatory cell. The lesion is covered by an ulcerated thin layer of stratified squamous epithelium. (D) PGCG exhibits focal nodules of multinucleated osteoclast-like cells. Hematoxylin and eosin (H&E) staining, scale bar: 100 μm. Insert: enlarged images