International Journal of Rheumatology / 2012 / Article / Tab 2

Research Article

Histopathologic Overlap between Fibrosing Mediastinitis and IgG4-Related Disease

Table 2

Distribution of the diagnostic criteria of IgG4-RD.

FM IgG4-RD ( )FM-non-IgG4-RD ( )

≥50 IgG4-positive plasma cells/HPF and ≥40% IgG4/IgG ratio, case (%) 3 (100) 0 (0)
Lymphoplasmacytic infiltrate, cases (%) 3 (100) 7 (58)
Storiform, cell-rich fibrosis, cases (%)3 (100)11 (91)
Obliterative phlebitis/arteritis, cases (%)2 (66)2 (16)

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