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Retina. 1996;16(2):135-8.

Retinoblastoma recurrence after iodine 125 plaque application.

Author information

1
Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia, USA.

Abstract

PURPOSE:

The authors report the clinicopathologic features of a recurrent retinoblastoma after radioactive iodine 125 (125l) plaque therapy.

METHODS:

The clinical and histopathologic findings of a 1-year-old boy with a recurrent retinoblastoma after 125l radioactive plaque application were reviewed. The patient's enucleated right eye was processed for routine histologic evaluation. Immunostains for glial fibrillary acid protein and S-100 protein were performed.

RESULTS:

Examination of the enucleated eye revealed a retinal tumor composed of two populations of cells. One population consisted of poorly differentiated cells, and the second population at the base of the tumor contained well-differentiated cells with numerous fleurettes. Immunohistochemical stains were positive for glial fibrillary acid protein and S-100 protein in the well-differentiated portion of the tumor.

CONCLUSION:

This case illustrates a recurrent retinoblastoma that may have arisen from radioresistant well-differentiated cells after 125l plaque therapy.

[Indexed for MEDLINE]

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