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Arch Ophthalmol. 2003;121:1049-1052.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Extraskeletal Ewing sarcoma is a rare soft tissue sarcoma histologically indistinguishable from osseous Ewing sarcoma. Tefft et al¹ first described the tumor in children with paravertebral soft tissue masses. Subsequent larger case series have shown that the tumor has a predilection for the paravertebral area and lower extremities.² The tumor most often occurs in the extremities and paraspinal areas and has been reported to occur in the head and neck region in 5% to 11% of patients.^3-5 While osseous Ewing sarcoma, both primary and metastatic, has been reported in the orbit,⁶ to our knowledge, ours is the first case of extraskeletal Ewing sarcoma to occur in the orbit. Furthermore, extraskeletal Ewing sarcoma manifesting as late as the sixth decade of life has not been reported, to our knowledge. We report a case of primary orbital extraskeletal Ewing sarcoma in a 56-year-old man, which was diagnosed using monoclonal antibody 013 to . . . [Full Text of this Article]

Report of a Case


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Corresponding author and reprints: John McCann, MD, PhD, Division of Orbit and Oculoplastic Surgery, Jules Stein Eye Institute/University of California–Los Angeles, 100 Stein Plaza, Los Angeles, CA 90095-7000 (e-mail: mccann@jsei.ucla.edu).