Diplopia Due to Orbital Myositis: Diagnosis with Magnetic Resonance Imaging

Abstract

Orbital myositis is a non-specific inflammatory disease primarily affecting the extraocular muscles. It is most commonly seen in young adults and women and is often unilateral. Periorbital pain, swelling and redness of the eyelid, limitation of eye movements, and diplopia can be seen in patients with this condition. It may be idiopathic or may develop due to secondary diseases such as systemic or infectious causes. Radiological imaging methods such as computed tomography and magnetic resonance imaging are very useful in its differential diagnosis. The response to oral corticosteroid treatment is very good. In this study, we report the clinical and radiological features of a 13-year-old girl diagnosed with orbital myositis, who experienced a complete recovery with steroid treatment.