Abstract
Osteoid osteoma is a benign bone-forming tumor, first described by Bergstand in 1930. It can involve every bone but is more common in long bones of lower extremities and rarely occurs in the jaw. A 14-year-old male patient complained of increased volume in the left preauricular region and had a history of condylectomy surgery in the region 3 months before the first evaluation. He presented a computed tomography report prior to the surgical procedure compatible with a nodular lesion with an exophytic ossified aspect and without cleavage plans, with the mandibular condylar process, occupying a parotid region, of approximately 21 × 16 mm. The removed lesion was submitted to histopathologic analysis with a diagnosis of a mandibular tumor compatible with osteoma. The patient was followed for 12 months, with periodic imaging exams, which revealed a spontaneous bone neoformation of the condylar region, without clinical and imaginologic signs of lesion recurrence.
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