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The most frequent ocular adnexal tumors and simulating lesions are lymphoproliferative disorders (LPDs), including malignant lymphomas and orbital inflammation with lymphoid hyperplasia or infiltration. IgG4-related orbital inflammation (IgG4-ROI) often involves lacrimal glands and other orbital tissues and is an important differential diagnosis. The(More)
We describe a 67-year-old man with immunoglobulin G4-related disease (IgG4-RD) presenting with optic neuropathy, dacryoadenitis, periaortitis, retroperitoneal fibrosis, and a gastric mass-like lesion. A mass-like lesion measuring 52 × 40 mm in the antrum of the stomach was found incidentally through whole-body screening for other organ involvement of(More)
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