Epidemiological pattern of retinoblastoma at the Philippine General Hospital
نویسندگان
چکیده
Results The incidence of retinoblastoma increased from 40/100,000 new cases in 1967 to 1977 to 237/100,000 new cases in 1997 to 2001. The average age at onset did not change over time but the age at consultation decreased from 1.5 years to 1 year. The most common initial ocular manifestation at onset was cat’s eye reflex (77 to 79%) with findings of leukocoria (67 to 77%). Extraocular findings of proptosis and orbital mass declined through the years. Bilateral retinoblastoma comprised 30% in this series and showed no change in distribution over the years.
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