[Retinoblastoma. Relation between choroid infiltration and orbital metastasis].

A late diagnosis of retinoblastoma is an unquestionable fact that allows its growth and leads to a deterioration in the outlook. It also gives way to the invasion of the choroidea by the retinal tumor. This event has been related by some authors to orbital recurrences or distant metastases. The evolution of intraocular retinoblastomas, with and without invasion to choroidea, is compared in this work. No significant differences were found in the thirty-three cases studied.