Single Biggest Cancer Dictionary in the World

What is

retinoblastoma

?

Pronunciation: /ˌrɛtɪˌnoʊˌblæˈstoʊmə/

retinoblastoma

Definition

Cancer that forms in the tissues of the retina (the light-sensitive layers of nerve tissue at the back of the eye). Retinoblastoma usually occurs in children younger than 5 years. It may be hereditary or nonhereditary (sporadic).