Clinical features of IgG4-related dacryoadenitis
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To elucidate the clinical characteristics of IgG4-related dacryoadenitis.
Clinical features, laboratory findings, radiological findings, associated diseases, treatment, and prognosis were prospectively examined in 12 patients (seven men, five women; mean age, 60.9 ± 15.1 years) with IgG4-related dacryoadenitis.
In addition to eyelid swelling, other ophthalmologic symptoms were observed in seven patients, including diplopia (n = 4), ptosis (n = 2), visual field disturbance (n = 2), eye pain (n = 2), decrease of visual acuity (n = 2), eye-movement disturbance (n = 1), dry eye (n = 1), corneal ulcer (n = 1), and epiphora (n = 1). Swelling of the lacrimal glands was bilateral in half of the patients. Other IgG4-related diseases were present in nine patients, including sialadenitis (n = 5), autoimmune pancreatitis (n = 4), retroperitoneal fibrosis (n = 2), and lymphadenopathy (n = 8). Serum IgG4 levels were significantly higher in patients with other IgG4-related disease (1070 ± 813 mg/dl) than in those without (197 ± 59 mg/dl, p = 0.017). Allergic histories and elevated serum IgE levels were each detected in six patients. Eight patients showed inflammatory extension beyond the lacrimal gland, such as thickened rectus muscle (n = 6), inflammation of the optic nerve (n = 2), and retrobulbar inflammation (n = 3). Steroid therapy was effective in seven patients, but dacryoadenitis relapsed in two patients with markedly higher serum IgG4 levels and autoimmune pancreatitis.
IgG4-related dacryoadenitis showed various ophthalmologic symptoms due to extensive inflammation beyond the lacrimal gland, frequent association with other IgG4-related disease or allergic phenomena, and steroid responsiveness.
KeywordsIgG4 IgG4-related dacryoadenitis Lacrimal gland Mikulicz’s disease Autoimmune pancreatitis
This work was supported in part by the Research Committee of Intractable Diseases, provided by the Ministry of Health, Labour, and Welfare of Japan.
Conflict of Interest
The authors state that they have no conflict of interest.
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