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At what age could screening for familial retinoblastoma be stopped? A register based study 1945-98
A C Moll1, S M Imhof, A Y Meeteren
1Department of Ophthalmology, Vrije Universiteit, Amsterdam, Netherlands. a.moll@azvu.nl
Aim:
To evaluate until what age children in families with retinoblastoma should be screened.
Methods:
A register based cohort (n= 685) study of Dutch retinoblastoma patients (1945-1998). The records of all familial hereditary retinoblastoma patients from 1945 were reviewed and the age at diagnosis and either they were screened from birth determined.
Results:
75 patients had the familial hereditary form of retinoblastoma. The mean age at diagnosis in patients with fundus screening (n=50) from birth on was 4.9 months (median 1.9 months; range 1 day to 48 months). Thus, 4 years was the latest onset of familial retinoblastoma properly evaluated from birth. This mean age was significantly different (p<0.0001) from the mean age at diagnosis in patients without fundus screening (n=25) from birth (mean 17.2 months; median 10.0 months; range 1.5-63.0 months).
Conclusions:
Ophthalmological screening of children and sibs at risk for familial hereditary retinoblastoma is recommended until the age of 4 years in order to detect retinoblastoma as early as possible.