[Orbital lymphangioma: a clinical and radiological entity. Apropos of a case]

We reported on the case of a seven years-old boy suffering from an acute unilateral proptosis. Diagnosis of orbital lymphangioma was made with Magnetic Resonance Imaging (MRI) showing an intra-tumoral hemorrhage in a vascular tumor unrelated to general circulation. Authors underlined the interest of MRI due to its unique ability to characterize hemorrhage with hemodynamic isolation and to plan therapeutic approach. Even controversial, conservative management remained the best choice but surgery should be considered if vision is threatened.