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NCI Dictionary of Cancer Terms

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NCI Dictionary of Cancer Terms



retinoblastoma  listen  (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).

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