Computed tomography (CT) and magnetic resonance imaging (MRI) findings of a 24-year-old man with involvement of the right orbit by myeloid sarcoma who reported right eye proptosis. (A) Contrast-enhanced axial CT scan of the orbit shows a homogeneously enhancing soft tissue mass in the intra-conal and extra-conal spaces of the right orbit. (B) T1-weighted axial MRI scan of the orbit shows a right orbit mass iso-intense to the periorbital muscle. (C) T2-weighted axial MRI scan of the orbit shows a right orbit mass mildly hyper-intense to the periorbital muscle.