Orbital vascular lesions may be difficult to distinguish on imaging. However, the following conditions have been described:
- arteriovenous malformation (AVM)
- capillary hemangioma
- cavernous hemangioma
- orbital lymphangioma / lymphangiovenous malformation / venolymphatic malformation
- orbital venous malformation
- orbital venous varix
- sclerosing hemangioma
- hemangiopericytoma
- hemangioendothelioma (angiosarcoma)
- arterial aneurysms