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n. A hereditary malignant tumor of the retina, transmitted as a dominant trait and occurring chiefly among infants.

n. A malignant tumour of the retina; a hereditary condition found mostly in children.

n. malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells

"One of only a few doctors in the nation using this approach, J. William Harbour, MD, is treating a rare childhood cancer, called retinoblastoma, which is characterized by tumors in the eye's retina."

metastatic tumor    malignant tumor    malignant neoplasm   

retinoblastoma protein   

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