Oral pulse granuloma: clinical and histopathological features. A review of 62 cases.

Clinical and histopathological features of 62 cases of oral pulse granuloma were reviewed and compared to the cases previously described in the literature. Oral pulse granuloma is a histopathological diagnosis for a localized lesion resulting from the implantation of food particles of plant origin. It often occurs in the posterior regions of an edentulous mandible in association with a full lower denture but it may also be found in periapical areas of grossly decayed teeth or retained roots and teeth with a history of endodontic therapy, where the root canal has been left open at some stage, associated with impacted lower third molar teeth with a history of pericoronitis, in post-extraction tissue reactions or as part of a cyst wall where there has been a communication with the oral cavity. The essential histopathological features consist of a connective tissue stroma containing variable numbers of inflammatory cells and foreign-body giant cells associated with hyaline rings and ovoid fibrillary or amorphous hyaline masses. Treatment is by local curettage or excision.