Table 1 Sonographic data of the included patients
| Â | n (%) |
|---|---|
Site | |
 Isthmic thyroid nodule | 40 (3.2) |
 Left thyroid nodule | 579 (45.6) |
 Right thyroid nodule | 650 (51.2) |
Elastography score | |
 1 | 103 (8.1) |
 2 | 993 (78.3) |
 3 | 137 (10.8) |
 4 | 36 (2.8) |
A-P/T | |
  < 1 | 1250 (98.5) |
  ≥ 1 | 19 (1.5) |
Number of nodule | |
 Solitary thyroid nodule | 136 (10.7) |
 MNG | 1133 (89.3) |
Nodule character | |
 Solitary | 136 (10.7) |
 Dominant | 1067 (84.1) |
 Smaller nodule | 66 (5.2) |
Echogenicity (hypo, hyper, iso) | |
 Isoechoic | 207 (16.4) |
 Hyperechoic | 243 (19.2) |
 Hypoechoic | 706 (55.8) |
 Markedly hypoechoic | 17 (1.3) |
 Heterogenous | 33 (2.6) |
 Cystic | 12 (0.9) |
 Complex cystic | 48 (3.8) |
Border (regular, irregular) | |
 Regular | 1222 (96.3) |
 Irregular | 47 (3.7) |
Calcification | |
 No | 888 (70) |
 Yes | 381 (30) |
Calcification type | |
 No | 888 (70) |
 Microcalcifications | 265 (20.9) |
 Egg shell calcifications | 17 (1.3) |
 Partial egg shell calcifications | 7 (0.6) |
 Patches of calcifications | 76 (6) |
 Punctate calcifications | 16 (1.3) |
Breakdown | |
 No | 774 (61) |
 Yes | 495 (39) |
Halo | |
 No | 413 (32.5) |
 Yes | 856 (67.5) |
TIRADS | |
 2 | 15 (1.2) |
 3 | 368 (29.5) |
 4 | 511 (40.9) |
 5 | 354 (28.4) |
Sonar diagnosis | |
 Benign | 1178 (92.8) |
 Malignant | 91 (7.2) |
Final diagnosis (pathology) | |
 Benign | 1197 (94.3) |
 Malignant | 72 (5.7) |
Type of malignancy | n = 72 (%) |
 Medullary | 4 (5.6) |
 Follicular neoplasm | 7 (9.7) |
 Lymphoma | 2 (2.8) |
 Papillary carcinoma | 59 (81.9) |
| Â | Median (range) |
SR | 1.3 (0.1–87) |
Largest diameter | 18 (2–55) |