There is gross of left-sided proptosis with a low density intracoronal mass lesion within the left orbit. The optic nerve is stretched around the medial aspect of the lesion which is predominantly of low density measuring approximately 10 HU in density. The lesion measures 28 x 21 mm in axial plane, 20 mm craniocaudal. An enhancing component is seen in the inferior and medial margin. The lesion appears largely fluid filled, though the enhancing component is concerning for tumour.