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Primary Ewing sarcoma of the orbit in a male adult Keigo Sato 1,2 , Miki Hiraoka 2 , Masato Hashimoto 2,3 , Ken Yamashita 4 , Shintaro Sugita 5 , Takumi Hasegawa 5 , Kazuyuki Murase 6 , Hiroshi Ohguro 2 1Department of Ophthalmology, Muroran City General Hospital 2Department of Ophthalmology, Sapporo Medical University 3Department of Ophthalmology, Nakamura Memorial Hospital 4Department of Plastic and Reconstructive Surgery, Sapporo Medical University 5Department of Surgical Pathology, Sapporo Medical University 6Department of Medical Oncology and Hematology, Sapporo Medical University pp.1773-1778
Published Date 2016/11/15
DOI https://doi.org/10.11477/mf.1410212081
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Abstract Purpose: To report primary Ewing cell sarcoma in a male adult.

Case: A 43-year-old male presented with hyperemia and eyelid swelling in the right eye since one month before. He had also proptosis of the right eye with diplopia since 3 weeks before.

Findings and Clinical Course: Corrected visual acuity was 0.4 right and 1.0 left. Intraocular pressure was 27 mmHg right and 19 mmHg left. The right eye showed proptosis and blepharoptosis. MRI showed a tumor with diameter of 35 mm along the upper inner margin of right orbit. The tumor partially extended into the cranial cavity. Systemic examinations showed no other tumorous lesion. He was diagnosed with Ewing sarcoma after biopsy and molecular studies. The tumor started to enlarge inducing prolapse of the eyeglobe 5 weeks later. Radiation and chemotherapy resulted in suppression of the tumor. The patient has been doing well for 18 months until present.

Conclusion: Primary Ewing sarcoma in the orbit rarely develops in an adult. In the present case, the lesion was brought under control after radiation and chemotherapy.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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