Mineralizing Fibroma Case Study

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PERIPHERAL OSSIFYING FIBROMA IN ELDERLY FEMALE PATIENT: case report INTRODUCTION Peripheral ossifying fibroma is a non-neoplastic proliferative process of multifactorial aetiology. This slow growth lesion is one of the most common inflammatory hyperplastic lesions of the oral cavity (EVERSOLE L.R; SABERS W.R, ROVEIN S, 1972 In: JUNIOR J.C.M; KEIM F.S; KREIBICH M.S, 2008). The pathogenesis of the lesion remains unclear, but is often associated with undifferentiated cells in the periodontal ligament, that when stimulated by irritants, for example, calculus, biofilm, the presence of orthodontic appliance with poor hygiene, crowns destruction caused by Carie cavities, traumatic restorations, as well as masticatory forces and impaction of food;…show more content…
Normally the bone is trabecular type, however the older lesions might show mature lamellar bone, and it is not uncommon the presence of osteoid non-mineralized trabeculae. As regards the number of lesions found in the mineralized material varies from case to case (BISINELLI J.C, MARÇAL M.S, LEPREVOST J, 2005; SAMANESES D. P. C, BASTOS E.G, SILVA V.C, 2010; FRANÇA et al 2011;). Due to their clinical and histopathological similarities, some peripheral ossifying fibroma are considered pyogenic granulomas that in the initial phase suffer fibrous maturation and subsequent calcification. The treatment of choice for peripheral ossifying fibroma is local surgical excision as well as the removal of the aggressive agent and forwarding the specimen for histopathological examination (NEVILLE W, DAMM D.D, ALLEN C.M, BOUQUOT J.E, 2008). If the lesion is not completely excisional, the result can be a recurrence and possible additional bone destruction by its evolution, leading to periodontal defects and additional tooth loss (KENDRICK F; WAGGONERW. F, 1996). The objective of this study is to describe a case of jaw injury diagnosed as peripheral ossifying fibroma and confront with data from the current…show more content…
(Figures 3 and 4). Figure 3 – Photomicroscopy showing calcified lesion bodies () (HEx40) Figure 4 – Photomicroscopy showing calcified lesion bodies () (HEx40) The tumor was removed and the patient is in follow up without signs of recurrence. This case demonstrates the occurrence of this tumor in elderly patients. DISCUSSION The POF is a benign fibroid-osseous lesion of unknown etiology, however, this type of injury seems to be associated with periodontal ligament cells or has its odontogenic origin suggested PILATTI G et al, 2005; SAMANESES D. P. C, BASTOS E.G, SILVA V.C, 2010). According to Neville et al (2008), studies show that there is prevalence in children and young adults between 10 and 19 years, and its predilection for the female gender at a rate of 2/3 compared to males. Clinically it is characterized as a nodular lesion, sessile or pedunculated, reddish or pinkish, frequently ulcerated. It presents consistent to the touch and slow, gradual and limited growth. (BISINELLI J.C, MARÇAL M.S, LEPREVOST J, 2005). Gums at maxillary incisors and canines region is POF most common location (SANTHOSH K. R, SATEESH C.P, SHREEDHAR

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