Osteogenic sarcoma after retinoblastoma radiotherapy

Abstract
Development of osteogenic sarcoma after retinoblastoma radiotherapy in three patients, two of whom were siblings, is reported. Pluridirectional tomography and plain skull radiography demonstrated soft tissue masses, sinus opacification, and bone destruction and sclerosis in all three patients. Computed tomography reliably indicated the presence or absence of intracranial tumor extension in the two patients in whom it was performed. Radionuclide bone scanning was a useful adjunct for osteosarcomatous detection.

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