ABSTRACT
To analyse causes of proptosis in patients attending El-Minya University Hospital out-patient ophthalmology clinic as regards their frequency in relation to age, sex, and lateralitiy. Fifty six patients with proptosis were examined in the ophthalmology out-patient clinic of El-Minya University hospital between July 2003 and March 2005. All patients were subjected to history taking, orbital, ocular and general examination, orbital echography and axial and coronal orbital CT scans. MR imaging of the orbits, examination of the field of vision, color vision testing, excisional and incisional biopsies, T3 and T4 level, complete blood picture, sternal puncture, chest X ray, abdominal US, therapeutic steroid test and endoscopic examination of paranasal sinuses were done in some patients guided by the results of clinical evaluation and primary studies. The patients were fifty six with 29 males and 27 female. The age ranged between two months and 70 years. 23 patients were in the pediatric age group [