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Heritable Retinoblastoma

Heritable Retinoblastoma - How to prevent?

Heritable Retinoblastoma - Preparing for surgery

Heritable Retinoblastoma - Post-surgery care

Heritable Retinoblastoma - Other Information

Common Myths & Misconceptions

  1. If my genetic test result is positive, it means that I have or will have retinoblastoma, or my retinoblastoma will recur.

    FALSE. The genetic test result cannot determine the likelihood of cancer recurrence or the presence of cancer. A positive result only indicates an increased risk of getting cancer or a new cancer developing.

  2. If my child tests positive, it means that my grandchildren will also have retinoblastoma.

    FALSE. If your child has a positive genetic test result where a faulty RB1 gene is identified, it means each of his/her future children has a 50% (1 in 2) chance of inheriting the faulty RB1 gene.

  3. My child looks a lot like me, so he/she must have inherited the faulty gene(s) since I have it.

    FALSE. Genes that govern your appearance are different from the genes that determine the risk of retinoblastoma like RB1.

  4. My child has heritable retinoblastoma and I have two other children, so one will inherit the faulty gene(s) and one will not, because there is a 50% chance.

    FALSE.It is recommended for parents of a child with heritable retinoblastoma to undergo predictive testing to determine if he/she has a faulty RB1 gene as well.

    If a parent does carry a faulty RB1 gene, all his/her children have a 50% (1 in 2) chance of inheriting the faulty gene. The genetic test result of one child does not impact the chances of the other child having heritable retinoblastoma.

 

Download the Heritable Retinoblastoma brochure.


The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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