Pathological veins in the orbit.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005354:Fibrosarcoma / Q000150:complications; D006391:Hemangioma / Q000150:complications; D006801:Humans; D008223:Lymphoma / Q000150:complications; D008297:Male; D009915:Orbit / Q000098:blood supply* / Q000000981:diagnostic imaging; D009918:Orbital Neoplasms / Q000150:complications; D010690:Phlebography; D013924:Thrombophlebitis / Q000000981:diagnostic imaging; D014648:Varicose Veins / Q000000981:diagnostic imaging; D014652:Vascular Diseases / Q000000981:diagnostic imaging