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Serologic factors in early relapse of IgG4-related orbital inflammation after steroid treatment
Toshinobu Kubota1, Masao Katayama, Suzuko Moritani
1Department of Ophthalmology, National Hospital Organization, Nagoya Medical Center, Japan. aniky@nnh.hosp.go.jp
Purpose:
To determine whether serologic factors correlate with early relapse in cases of IgG4-related orbital inflammation, a lymphoproliferative disorder.
Design:
Retrospective cohort study.
Methods:
We examined the orbital images and serum data of 30 patients with (n=24) or without (n=6) corticosteroid treatment before and after corticosteroid treatment and 6 months after discontinuation of corticosteroid treatment.
Results:
Seven patients (23%) (all with corticosteroid treatment) had elevated serum levels of rheumatoid factor. Of the 24 patients with corticosteroid treatment, 24 (100%) showed regression of the lesion, but 8 of the 24 (33%) showed relapse. The serum IgG4 levels before and after corticosteroid treatment were not significantly different between the relapsed and nonrelapsed groups (P=.5 and P=.2, respectively). However, the incidence of patients who were rheumatoid factor-positive was significantly higher in the relapsed group (P=.02). The 6 patients without corticosteroid treatment showed minor proliferation or regression of the lesion at the 6-month follow-up.
Conclusions:
The serum rheumatoid factor level may correlate with proliferative activity in IgG4-related orbital inflammation.
