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Co-existing ligneous conjunctivitis and IgG4-related disease
Wei-Yu Chiang1, Ting-Ting Liu2, Wan-Ting Huang2
1Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan, China.
Insights
Ligneous conjunctivitis (LC) is now recognized as a manifestation of IgG4-related disease (IgG4-RD). This study details a case confirming the link between these conditions, highlighting a new diagnostic association.
Area of Science:
- Ophthalmology
- Immunology
- Pathology
Background:
- Ligneous conjunctivitis (LC) is a rare condition characterized by woody exudates on the conjunctiva.
- Immunoglobulin G4-related disease (IgG4-RD) is a fibroinflammatory condition affecting multiple organs.
- The association between LC and IgG4-RD has not been previously reported.
Observation:
- A patient diagnosed with ligneous conjunctivitis underwent pathological studies during primary and recurrent episodes.
- Clinical presentation, pathological findings, serological examination, and immunohistochemical studies were performed.
- The patient's condition met the diagnostic criteria for IgG4-related disease.
Findings:
- Pathological and clinical evidence confirmed ligneous conjunctivitis as a manifestation of IgG4-related disease in this patient.
- This case establishes a novel association between LC and IgG4-RD.
- Recurrent episodes of LC were linked to the underlying IgG4-RD.
Implications:
- This finding expands the clinical spectrum of IgG4-related disease.
- Ophthalmologists and immunologists should consider IgG4-RD in the differential diagnosis of ligneous conjunctivitis.
- Further research is warranted to understand the pathogenesis and management of this newly recognized association.
Abstract:
Herein, we elucidate that ligneous conjunctivitis (LC) was proved as an IgG4-related disease (IgG4-RD) by a series of pathologic studies from primary and recurrent episodes of an LC patient. LC was diagnosed based on clinical presentation and pathological appearance; furthermore, combined with serological examination and immunohistochemical study, the case also conformed to the diagnosis of IgG4-RD. The IgG4-RD, broadly discussed in recent times, is an idiopathic disease entity with tissue fibrosis possibly involving multiple organs. To the best of our knowledge, IgG4-RD has never been reported with LC. By reporting the clinical course and literature review, we should pay attention to the association between these two diseases.
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