Abstract
Primary orbital Ewing's sarcoma is a very rare condition. Since the first case was reported in 1950, only 7 other cases have been reported in the English literature. Herein we describe the ninth, the only bilateral and the youngest case of primary orbital Ewing's sarcoma occurring in a 2-year-old boy, who presented to us with bilateral painless proptosis. Tissue biopsy of the tumour was obtained through the nasal sinus. Immunohistological studies of the biopsy tissue confirmed the diagnosis of Ewing's sarcoma. No distant site of the tumour was found so this was considered a primary orbital tumour. Combined chemotherapy and radiotherapy without surgical resection achieved an encouraging result in that the patient has remained in remission for 30 months after completion of treatment. The successful use of combined chemotherapy and radiotherapy, without surgery, adds further support to evidence that surgical excision may be avoided in selected cases of primary orbital Ewing's sarcoma.
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Presented in part at the Hong Kong Ophthalmological Symposium, December 1997, Hong Kong
Supported in part by the Mrs Annie Wong Eye Foundation
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Lam, D., Li, C., Cheng, L. et al. Primary orbital Ewing's sarcoma: Report of a case and review of the literature. Eye 13, 38–42 (1999). https://doi.org/10.1038/eye.1999.8
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DOI: https://doi.org/10.1038/eye.1999.8
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