Heritable Fraction of Unilateral Wilms Tumor
1 From the Clinical Studies Section, National Cancer Institute, Bethesda, Maryland; Fox Chase Cancer Center, Philadelphia; Dana-Farber Cancer Institute, Boston; Institute Gustave Roussy, Villejuif, France; Roswell Park Memorial Institute, Buffalo, New York; and Children's Hospital of Philadelphia
Heritability of the unilateral-sporadic (non-familial) form of Wilms tumor was examined in the offspring of 96 long-term survivors of the neoplasm. No Wilms tumor has developed in any of the 179 offspring of these patients. The maximum likelihood estimate of a hereditary Wilms tumor in our patients is zero and the corresponding 95% upper confidence limit ranges between 0.06 and 0.11, depending on penetrance. Among their offspring, the 95% upper bound of the risk of Wilms tumor is 0.02. These figures can be applied in genetic counseling of other survivors of unilateral-sporadic Wilms tumor.
Key Words: Wilms tumor cancer genetics counseling
Submitted on December 18, 1986
Accepted on April 13, 1987
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