Trabecular Variant of Juvenile Aggressive Ossifying Fibroma of Anterior Mandible

Manjunatha B S,Gowramma R,Saraswati Naik,Nagarajappa Das

doi:10.4081/pr.2012.e24

Abstract

Juvenile ossifying fibroma (JOF) is an expansile intra-osseous lesion of the jaw that emulate odontogenic lesions frequently seen in patients under 15 years of age. They are histologically characterized by the presence of fibrous stromal cells along with mineralized tissues. Clinically, these are characterized by early age of onset, histological patterns, high rate of recurrence and the aggressive local behavior. The differential diagnosis of JOF with other fibro-osseous lesions of the jaw should be made along with an essential microscopic examination and be largely based on the character of the calcified products of the tumor. The purpose of this article is to present a rare clinical case of the trabecular type of JOF and to describe its clinical, radiological and histological characteristics. The clinician should be aware of this type of lesion in order to be able to distinguish this it from other fibrous lesions if encountered in routine practice and for appropriate treatment to be carried out.

Highlights

Based on the clinical and radiographic features, diagnosis of ossifying fibroma was made and the lesion was removed by surgical curettage under local anesthesia
Juvenile ossifying fibroma (JOF) is an uncommon fibro-osseous lesion mostly occurring in the facial bones.[1]
The term juvenile emphasizes that the tumor largely develops in younger individuals, 79% of whom are under the age of 15 years old.[3]. It has been recognized as a separate histopathological entity among the fibroosseous group of lesions which are highly aggressive in nature and which have a strong trend of recurrence

Summary

Case Report

The extra-oral clinical examination revealed a swelling of the outer cortical layer at the anterior mandibular incisor area (Figure 1) which produced slight facial asymmetry. The swelling was firm to slightly hard in consistency and measured approximately 2¥2 cm (Figure 2). Both permanent center incisor teeth were displaced or had drifted laterally due to the lesion. The occlusal and intra oral periapical radiographs revealed radiolucent mass at the anterior mandibular area and both central incisors had drifted laterally (Figure 3). Based on the clinical and radiographic features, diagnosis of ossifying fibroma was made and the lesion was removed by surgical curettage under local anesthesia. Peripheral bony trebaculae was lined by osteoblasts This led us to make a diagnosis of trabecular juvenile ossifying fibroma

Introduction

Findings

JOF have been reported in the English