Fig. 2From: Clinical characteristics, treatment and prognosis of children with unilateral retinoblastoma and intracranial segment of Retrobulbar optic nerve invasionRepresentative images of orbital MRI in one unilateral RB patients with intracranial segment of retrobulbar optic nerve invasion. a, Orbital MRI in one patient showed a space-occupying lesion in the left eyeball, thickened optic nerve and intracranial segment invasion. b, Magnetic resonance angiography; c, Orbital MRI showed enhancement in inintraorbital and intracanalicular segments of optic nerve during treatment; d, MRI image of left eye after enucleation and chemotherapy. MRI, magnetic resonance imaging; RB, retinoblastomaBack to article page