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Editor,—The great majority of orbital tumours are unilateral. However, some conditions, such as idiopathic orbital inflammation (“pseudotumour”), granulomatous inflammation, lymphoid tumours, or metastases sometimes can be bilateral. Orbital cavernous haemangioma is almost always unilateral.1 2 We report a patient with bilateral orbital cavernous haemangiomas that caused unilateral proptosis and visual distortion.
CASE REPORT
A 37 year old man developed distorted vision in the inferior field of his left eye and was found to have mild left proptosis. There was mild swelling of the left optic disc and a small inferonasal visual field defect. Orbital computed tomography (CT) revealed bilateral orbital masses and the patient was referred to the oncology service for another opinion and management. His visual acuity was 6/6 …