Dictionary of Cancer Terms
View in Spanish: Retinoblastoma
Retinoblastoma (REH-tih-noh-blas-TOH-muh)
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).
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.