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.

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