Retinoblastoma - Glossary

Glossary

Malignancy (Cancer): An abnormal growth of tissue in an organ which can spread to other organs

Tumor: An abnormal growth of tissue, that may be benign (non-cancerous) or malignant (cancerous)

Sclera: White visible portion of the eye

Orbit: The bony socket containing the eyeball

Pseudoglioma: A collective term to denote the conditions that simulate retinoblastoma by producing a whitish reflex in the pupil

Coloboma: Absence of tissue in any part of the eye

Endophthalmitis: Inflammation of the intraocular contents, particularly the vitreous

Vitreous: The thick gel that fills the posterior segment of the eye