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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)