[Mandibular osteitis on a periapical granuloma mimicking an osteosarcoma: a case report].

INTRODUCTION

Osteitis is an inflammatory disease of bone tissue. Its clinical presentation varies according to the site, presence or absence of pus, duration and etiology. It represents one of the endo-periodontal diseases complication. We report the case of a mandibular osteitis having led to confusion with an ostesarcoma.

OBSERVATION: A 13-year-old boy was referred to our department for a right low swelling with suspicion of mandible osteosarcoma. The lesion’s evolution was 6 weeks. With the local aggressiveness and the speed evolution, the first diagnosis proposed was a mandibular osteosarcoma. Based on the clinical and radiological data established, the diagnosis of mandibular osteitis on a periapical granuloma was made and the treatment consisted on the causal tooth extraction with curettage of the periapical lesion associated to the prescription of macrolide (ERY®). The clinical follow-up was 6 weeks, a recovery with cessation of clinical signs were noticed.

DISCUSSION: The differential diagnosis facing the clinical context is an osteitis on a periapical inflammatory cyst and especially mandibular osteosarcoma. For the therapy, it’s a 3 components treatment (etiology, medical and surgical) to obtain a recovery.