HISTORY:  A 53 years old female patient presented with progressive dimunition of vision in the right eye for one year  alongwith  complete loss of vision and excrutiating pain in the same eye since 15 days. Opthalmic examinaton revealed no perception of light in the right eye, with retinal detachment and presence of a nonpigmented mass lesion in the posterior chamber. Sections taken from the choroid and optic nerve are provided.