Table 3 Characteristics of Lymph Nodes and Masses (N = 328)
Chlorhexidine Mouthrinse (n = 159) | Usual Care (n = 169) | P Value | |
|---|---|---|---|
LN stations/masses | |||
2R | 14 (8.8) | 17 (10.1) | |
2L | 0 (0.0) | 1 (0.6) | |
3P | 0 (0.0) | 1 (0.6) | |
4R | 40 (25.2) | 42 (24.9) | |
4L | 29 (18.2) | 29 (17.2) | |
7 | 39 (24.5) | 43 (25.4) | |
10R | 2 (1.3) | 1 (0.6) | |
10L | 4 (2.5) | 1 (0.6) | |
11R | 17 (10.7) | 22 (13.0) | |
11L | 10 (6.3) | 11 (6.5) | |
Mass | 4 (2.5) | 1 (0.6) | |
Number of aspirations per LN/mass | 0.30 | ||
≤ 1 | 89 (56.0) | 85 (50.3) | |
> 1 | 70 (44.0) | 84 (49.7) | |
Ultrasound characteristics | |||
Size > 1 cm | 56 (35.2) | 38 (22.5) | 0.01 |
Round shape | 21 (13.2) | 20 (11.8) | 0.71 |
Distinct margin | 123 (77.4) | 122 (72.2) | 0.28 |
Central hilar structure | 29 (18.2) | 46 (27.2) | 0.05 |
Calcification | 16 (10.1) | 29 (17.2) | 0.06 |
Heterogeneous echogenicity | 36 (22.6) | 20 (11.8) | 0.01 |
Coagulation necrosis sign | 10 (6.3) | 6 (3.6) | 0.25 |
Cystic lesion | 0 (0.0) | 0 (0.0) | |
Gross visual appearance of aspirates | |||
Pus-like material | 8 (5.0) | 2 (1.2) | 0.06 |
Cytopathology of LN/mass (n = 327)a | 0.14 | ||
Malignant | 39 (24.5) | 30 (17.9) | |
Benign | 120 (75.5) | 138 (82.1) | |