Giant Peripheral Ossifying Fibroma of the Posterior Mandible-A Rare Case Report

Abstract

Large, atypical peripheral ossifying fibromas are known as giant peripheral ossifying fibromas. These lesions have often been associated with heterogeneous clinical and radiographic characteristics subsequently leading to their misdiagnosis. Biopsies have been the gold standard for the diagnosis of such lesions. This study reports on an acute presentation of giant peripheral ossifying fibroma, clinically mimicking a malignant lesion due to its atypical presentation along with its characteristic histological features, which led to the establishment of the diagnosis.

Keywords: Giant; gingival growths; gingival neoplasms; ossifying fibroma.

Figure 1

Clinical Picture Showing Diffuse Swelling of the Right Side of the Face

Figure 2

Intra Oral View: Pinkish, sessile, bilobed, fibrous soft tissue mass extending from region 45 to 48, involving both the buccal and lingual vestibule

Figure 3

OPG Showing Soft Tissue Opacificationin the Right Posterior Mandible Extending From Region 46 to 48

Figure 4

HyperplasticParakeratinized Stratified Squamous Epithelium with Areas of Ulceration, Covered With a Fibro-Purulent Membrane and a Subjacent Area of Granulation Tissue (H&E, original magnification x100

Figure 5

Areas Showing Cellular Fibroblastic Proliferation and Mineralization (H&E, original magnification x400

Figure 6

Post Excisional View Showing Access Step Osteotomy Site