Aggressive Multilocular Osteoblastoma in the Mandible: A Rare and Difficult Case to Diagnose

Brazilian Dental Journal

Maria Luiza Anjos Pontual¹  Andréa Anjos Pontual¹  Rafael Grotta Grempel¹  Leonardo Rocha Mendes Campos¹  Antonio De Lisboa Lopes Costa¹  Gustavo Pina Godoy¹ 

关键词: osteoblastoma;    aggressive osteoblastoma;    differential diagnosis;    mandible.;   

DOI  :  10.1590/0103-6440201300220

来源: SciELO

【 摘 要 】

Osteoblastoma is a benign neoplasia and is uncommon in the jaws. In some cases, this lesion presents extremely aggressive local characteristics and is termed aggressive osteoblastoma. Because the clinical, radiographic and histopathologic characteristics are similar to those of a variety of benign and malignant tumors, it poses a diagnostic dilemma. This report presents a case of an aggressive osteoblastoma in the mandible and discusses the differential diagnosis of this lesion. A 13-year-old white male sought the Stomatology Clinic at the State University of Paraíba, Campina Grande, PB, Brazil, complaining of asymptomatic swelling on the left side of his face. Cone-beam computerized tomography showed a multilocular, hypodense bone lesion, located in the body of the left mandible and lower third of the ascending ramus. The initial diagnostic hypothesis was juvenile ossifying fibroma or osteosarcoma. After histopathologic examination, the final diagnosis was aggressive osteoblastoma. Surgical resection with a safety margin was performed. There was no evidence of recurrence after a follow-up period of 4 years.

【 授权许可】

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