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What are the stages of retinoblastoma?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner
Medical professionals use a system called "staging" to communicate about the extent of a cancer. Retinoblastoma is divided into five stages that are basically organized around the extent to which the cancer has invaded the body and whether or not the eye can be saved. A Group 1 cancer is a small tumor in back of the eye. Group 5, the most serious stage describes a tumor occupying more than 50 percent of retina and spreading outside the eyeball.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.