No abstract

Pulse granuloma is a rare oral inflammatory lesion histologically characterized by the presence of giant cells, foreign body type, associated with hyaline rings and chronic inflammatory fibrous tissue. The pathogenesis of oral pulse granuloma is very controversial; thus, this condition has received the following designations: hyaline ring granuloma, chronic periostitis, granuloma in edentulous jaws, giant cell hyaline angiopathy, pulse granuloma, food-induced granuloma, and oral-vegetable granuloma. 1 Clinically, it appears as a nonspecific mass, with an inflammatory aspect, that is asymptomatic, firm or fluctuating, painful to touch, and located in the oral cavity.The aim of this work was to present a rare and infrequent case of pulse granuloma located in the wall of a radicular cyst that, in our opinion, corroborates the extrinsic origin of the lesion.