Author/Authors :
Yazicioglu, Titap Istanbul Kartal Dr. Lutfi Kirdar Training and Research Hospital - Eye Clinic - Istanbul - Turkey , Kutluturk, Isil Istanbul Kartal Dr. Lutfi Kirdar Training and Research Hospital - Eye Clinic - Istanbul - Turkey
Abstract :
Non-specific orbital inflamation (NSOI) syndrome is a non-granulomatous, non-infectious and non-neoplastic orbital disease with unknown etiology. Despite being rare in children, NSOI accounts for up to 6 - 17% of all pediatric orbital inflammatory diseases and several conditions such as cellulitis, rhabdomyosarcoma and leukemia are considered in the differential diagnosis (1). The most frequent subtype of NSOI is orbital myositis (29%), followed by dacryoadenitis with myositis (8%), orbital apex inflammation (9%) and others (22%) (2). It clinically presents as a mass in the eyelids, restricted ocular motility, eyelid edema and increased orbital pressure. While in adults it manifests itself more often as proptosis, it more frequently presents in children as ptosis (3). Its exact cause is unknown, however, immunologic mechanisms have been addressed (4). While a definitive diagnosis of the disease is established by means of the orbital tissue biopsies, in most cases the disease can be diagnosed by clinical and radiological examinations (5). We present a case with unusual presentation of IOIP admitted to our clinic with sudden onset of diplopia and reduction of outward gaze in the left eye.
