The 2023 Revised Diagnostic Criteria for IgG4-related Dacryoadenitis and Sialadenitis.
Modern rheumatology(2024)
Abstract
OBJECTIVES:For the diagnosis of IgG4-related dacryoadenitis and sialadenitis, either revised comprehensive diagnostic criteria or organ-specific diagnostic criteria for IgG4-related dacryoadenitis and sialadenitis in 2008 were applied; however, the collected knowledge for IgG4-related dacryoadenitis and sialadenitis required us to revise the criteria for IgG4-related dacryoadenitis and sialadenitis. METHODS:The board member of Japanese Study Group for IgG4-related Dacryoadenitis and Sialadenitis revised the diagnostic criteria for IgG4-related dacryoadenitis and sialadenitis. We collected the clinical questions to be revised and performed a review of the literature. When the data were insufficient, additional data collection was performed. After the revision, public comments were collected. RESULTS:The three major points were revised. 1. Asymmetric or under two pairs of dacryoadenitis and sialoadenitis were included as IgG4-related dacryoadenitis and sialadenitis. 2. The thresholds of IgG4-positive cell infiltration were adjusted to an IgG4+/IgG+ ratio >0.4 and IgG4+ cells >10 per high power field. 3. The labial salivary gland biopsy was allowed to diagnose IgG4-related dacryoadenitis and sialadenitis. CONCLUSIONS:The revised diagnostic criteria for IgG4-related dacryoadenitis and sialadenitis solved several issues with the previous criteria. It will improve the early diagnosis of IgG4-related dacryoadenitis and sialadenitis, especially in situations without enough resources for a biopsy.
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