Ann Optom Contact Lens.  2021 Sep;20(3):124-128. 10.52725/aocl.2021.20.3.124.

Immunoglobulin G4-related Ophthalmic Disease with Peripheral Eosinophilia and Elevated Immunoglobulin E Levels

Affiliations
  • 1Department of Ophthalmology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea

Abstract

Purpose
To report a case with peripheral eosinophilia and elevated immunoglobulin (Ig) E levels, subsequently diagnosed as IgG4-related ophthalmic disease involving the extraocular muscles.
Case summary
A 56-year-old male visited the allergy department presenting with systemic urticaria and bilateral eyelid swelling that began 5 months prior. Laboratory examinations showed elevated levels of serum eosinophil and IgE, 1,309 IU/uL and 1,793 IU/mL, respectively. Orbital computed tomography revealed that all extraocular muscles and the bilateral exophthalmos were enlarged, and the patient was referred to the ophthalmology department. Eye alignment was orthophoric for all gaze directions, and limited abduction (-1) was noted in both eyes. An incisional biopsy of the extraocular muscles was conducted. Histopathological findings showed lymphoid aggregates, diffuse fibrosis, and an increased IgG4+/IgG+ plasma cell ratio of 40%, which led to the diagnosis of IgG4-related ophthalmic disease. An elevated IgG4 serum level (1,710 mg/dL) was also noted. The patient received high-dose intravenous steroids and eyelid swelling improved after two months. Levels of serum eosinophil, IgE, and IgG4 all decreased after three months.
Conclusions
IgG4-related ophthalmic disease may be accompanied by eosinophilia and elevated IgE. These findings may facilitate future diagnoses of this disease.

Keyword

Eosinophil; Immunoglobulin E; Immunoglobulin G4-related ophthalmic disease
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