Our Experience with Orbital Vascular Disorders in Menoufia University Hospital, Egypt

Vascular anomalies are classified into vascular tumors and vascular malformations based on the classification system of the International Society for the Study of Vascular Anomalies (ISSVA). Vascular tumors are characterized by proliferation and tumor enlargement, and the most common vascular tumor is infantile hemangioma, while a less common vascular tumor is hemangiopericytoma. Vascular malformations consist of nonproliferating vascular lesions in which blood flow is misdirected through anomalous channels. Malformations exist on a spectrum, ranging from high-flow arteriovenous malformation (AVM), low-flow venous (varix) and lymphovenous malformations, and capillary-venous malformations. Flow characteristics affect the natural history of vascular anomalies and are helpful in making the correct diagnosis [1,2]. Patients with orbital vascular disorders seek medical advice for many reasons. Among these, exophthalmos, pain, and diplopia are most common. Patients presenting with these symptoms must undergo a comprehensive ophthalmic history and examination in order to document the type of the tumor and determine its clinical impact [3-5].