Table 1 Patient distribution according to the ultrasonography findings of the primary tumor
From: Ultrasonographic findings relating to lymph node metastasis in single micropapillary thyroid cancer
Ultrasonography findings | n(%) | |
|---|---|---|
Nature | Solid | 219 (99.5) |
Mixed | 1 (0.5) | |
Shape | Round to ovoid | 83 (37.7) |
Irregular | 81 (36.8) | |
Taller than wide | 56 (25.5) | |
Echogenicity | Isoechoic | 20 (9.1) |
Hypoechoic | 80 (36.4) | |
Markedly hypoechoic | 120 (54.5) | |
Margin | Well defined | 59 (26.8) |
Poorly defined | 161 (73.2) | |
Calcification | Absent | 163 (74.1) |
Microcalcification | 29 (13.2) | |
Other types | 28 (12.7) | |