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Fluctuating nature of an orbital venous-lymphatic anomaly in association with intracranial vascular malformations: a classical presentation

Venous-lymphatic anomalies (VLA) are rare and benign congenital lesions of the lymphatic system, composed of endothelial-lined lymphatic cysts. They are most frequently located in the region of the head and neck, and represent 4% of all orbital masses. In those patients with extensive orbital VLAs, a strong association with intracranial vascular anomalies has been reported. Factors known to suddenly increase the size of these lesions include upper respiratory tract infections or intralesional haemorrhage; however, complete spontaneous regression is rare. We report on the classic presentation of a patient with a fluctuating right orbital VLA in association with an intracranial cavernous malformation and intracranial developmental venous anomaly.