A 67-year-old female patient was referred to our clinic by her general practitioner for an oral tumour that had been present for 20 years. The lesion was asymptomatic and had grown over the last year, causing an aesthetic facial deformity and interfering with mastication. Her personal history included a hysterectomy and double anisectomy 10 years earlier. She did not report smoking or alcohol consumption.
Physical examination revealed facial asymmetry. The intraoral examination revealed a pedunculated tumour on the left mandibular gingival ridge corresponding to the edentulous space of 37, 6-8 cm in diameter, well delimited, partially covered by a whitish mucosa with a hard-elastic consistency. In addition, there was mobility due to displacement of 35, 36 and 38 and root remnants of 25, 26 and 27.
The radiological examination with orthopantomography revealed tooth displacement and the aforementioned root remnants.
Under the presumptive diagnosis of cemento-ossifying fibroma, the patient underwent surgery under general anaesthesia, with removal of the tumour, curettage of the bone bed and avulsion of 35, 36, 38 and maxillary root remnants.
The evolution was satisfactory and after 9 months of follow-up the patient is asymptomatic and with no evidence of physical or radiological signs of recurrence.
