Osteoid osteoma of the ethmoid sinus: A rare diagnosis

April 30, 2012
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Abstract

Osteoid osteomas are benign osseous lesions. They have seldom been described in the otolaryngology literature, and they are extremely rare in the ethmoid sinuses. We report a new case of osteoid osteoma of the ethmoid sinus in a 15-year-old girl. The workup consisted of computed tomography. Treatment involved local excision via an external ethmoidectomy approach. The diagnosis was based on histopathologic examination.

Introduction

Osteoid osteomas are benign osseous lesions that are extremely rare in the ethmoid sinuses. Osteoid osteomas can be easily identified radiologically by the presence of a central nidus surrounded by dense sclerotic bone on computed tomography (CT). In this article, we report a new case of osteoid osteoma that originated in the ethmoid sinus.

Case report

A 15-year-old girl presented to our ENT department with a 1-month history of an enlarging right-sided superior orbital mass. She denied any history of sinusitis, vision changes, or relevant trauma.

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