Table 2 Summary of the IgG4-positive plasma cell counts and the location of the IgG4-positive plasma cell infiltrates in the three groups: (A) nonspecific sialadenitis without known sialolithiasis, (B) sialolithiasis with sialadenitis, and (C) sialolithiasis without sialadenitis.
From: IgG4-positive plasma cells in nonspecific sialadenitis and sialolithiasis
Group A (n = 59) | Group B (n = 56) | Group C (n = 50) | ||||
|---|---|---|---|---|---|---|
n | (%) | n | (%) | n | (%) | |
IgG4-positive plasma cell count | ||||||
0 | 15 | (25) | 1 | (2) | 18 | (36) |
1–10 | 21 | (36) | 16 | (29) | 20 | (40) |
11–40 | 15 | (25) | 21 | (37) | 4 | (8) |
41–69 | 2 | (4) | 7 | (12) | 6 | (12) |
≥70 | 6 | (10) | 11 | (20) | 2 | (4) |
Location of IgG4-positive plasma cell infiltrates | ||||||
None/sparsely | 36 | (61) | 17 | (30) | 38 | (76) |
Throughout gland | 21 | (36) | 23 | (41) | 2 | (4) |
Periductal | 2 | (3) | 16 | (29) | 10 | (20) |
