The oral vegetable or pulse granuloma develops in response to the cell wall of vegetable material that has become embedded in the oral mucosa. "Pulse" is a term that refers to a leguminous plant (pea, bean, etc.)
Synonyms: giant cell hyaline angiopathy, hyaline ring granuloma
Clinical features:
(1) typically in the premolar or molar region of an edentulous mandible
(2) associated with recurrent swelling and tenderness
(3) may be extraosseous, intra-osseous or within a dental cyst
Histologic features:
(1) chronic inflammation with foreign body type giant cells
(2) presence of eosinophilic, hyaline rings which may be intact or partial
(3) within the center of the rings there may be hemosiderin deposits
(4) collagen can be demonstrated on the surface of the rings
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