[Trilateral retinoblastoma: clinical and diagnostic imaging]. / Rétinoblastome trilatéral: diagnostic clinique et par imagerie.

A case of trilateral retinoblastoma in a male child of 29 months is described, using a clinical and imaging approach. The patient was first presented with a proptosis, more pronounced in the left eye and with signs of a bilateral glaucoma. Ophthalmologic examination, echography and computed tomography were used to confirm the diagnosis. The importance of clinical examination associated with an imaging approach to evaluate intraocular tumors was emphasized and also the necessity of identifying trilateral retinoblastoma as a distinct entity and to differentiate it from intracranial metastasis or from a single retinoblastoma associated with pineal tumors.