Ewing-s tumor following bilateral retinoblastoma. A case report

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Abstract
Retinoblastoma is found in a hereditary and nonhereditary form. Long survivors treated for the hereditary form seem to be predisposed for developing a second primary tumor later in life. The retinoblastoma genes are supposed to be responsible for this disposition. This report describes the development of a Ewing-s tumor in a nine-year-old girl, who had both eyes removed in early life for retinoblastoma.