Bilateral orbital masses caused by IgG4-expressing MALT lymphoma in the right side and IgG4-related ophthalmic disease in the left side: A case report
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A 60-year-old Japanese man developed a protruding right eye. He underwent a magnetic resonance imaging (MRI) scan, which revealed a right orbital mass. The serum immunoglobulin G4 (IgG4) level was elevated and IgG4+ plasma cells were observed in biopsy specime... ...
