الفهرس 
Introduction & Aim of the workOnly 14 pages are availabe for public view
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Abstract
This study was conducted after approval by the Ethical Committee of Assiut University according to the ethical principles outlined in the Declaration of Helsinki, in the period between March 2017 and January 2020. The study included 61 patients presented to the Orbital Unit of Assiut University Hospital, the referral center of Upper Egypt with orbital tumors that were confirmed by histopathology. The patients were classified into 2 groups; group A of 47 patients (77.05%) with benign orbital tumors and group B of 14 patients (22.95%) with malignant orbital tumors. With exclusion of 3 orbital locations (lacrimal gland region, the orbital area between the orbital roof and the levator muscle and the posterior orbit near its apex), the tumors were located at different orbital locations in relation to the muscle cone, the optic nerve and the orbital depth.
The study aimed to evaluate the transconjunctival approach in management of this relatively large number of benign and malignant tumors at different orbital locations. The presumptive diagnosis of the tumor nature being benign or malignant was based on the correlation between the clinical and radiological findings and the intraoperative gross appearance of the mass. For presumed benign orbital tumors, the surgical plan was total excision of the mass, while the aim was to take a biopsy for diagnosis in those with presumptive malignant orbital tumor. The procedure was considered successful if the approach provided the surgeon with adequate corridor to achieve the predetermined decision without causing permanent complications. The procedure was considered a failure if the predetermined decision could not be achieved via the approach or if permanent complications occurred related to the approach.