Figure 1: Findings at the first examination (2 weeks after the sudden left proptosis). A. Frontal view. Left proptosis and a small subconjunctival hemorrhage in the left eye are demonstrated. B. Left oblique view. C. Axial computed tomography (CT) imaging. An extensive multicystic mass is shown in the left orbit with niveau formation. D. Coronal CT imaging. The mass occupies the superotemporal part of the left orbit and pushes the optic nerve inferonasally.