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A 59-year-old nonobese man presented with a 7-year history of gradually progressive swelling over the left eye. He had no other clinically significant medical history or history of trauma. There was a soft, yellowish mass in the outer temporal subconjunctival region (Panel A). The patient's vision was normal. Among the disorders in the differential diagnosis, orbital lymphoma was a particular concern. Characteristic features of an orbital lymphoma typically include a lesion of salmon color that is firm on palpation, that has a solid appearance on computed tomography (CT), and that follows the contour of the orbit without bony erosion. The . . . [Full Text of this Article] |