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Orbital rhabdomyosarcoma in an adult.

INTRODUCTION
Rhabdomyosarcoma is the most common primary orbital malignant tumor in children. Orbital lesions represent about 10 % of all the cases of rhabdomyosarcoma. Rhabdomyosarcoma is a rare cause of proptosis in adults.


OBJECTIVE
To report a case of primary orbital rhabdomyosarcoma in a 45-year-old female.


DESIGN
Interventional case report. The main outcome measures are a rare cause ofproptosis in an adult, discussion on treatment options and prognosis ofrhabdomyosarcoma.


RESULT
The patient underwent total orbital exenteration and was referred for radiotherapy and chemotherapy.


CONCLUSION
Rhabdomyosarcoma is a rare cause of proptosis in adults. It should be suspected in a case of rapidly-progressive proptosis in adults.