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Table 1 Main ultrasound characteristics of 72 solid nodules included in the study

From: The use of core needle biopsy as first-line in diagnosis of thyroid nodules reduces false negative and inconclusive data reported by fine-needle aspiration

  CNB group FNA group P
Size (mm) 12.3 ± 3.8 11.2 ± 5.1 0.31
Marked hypoechogenicity 26 (82.9%) 37 (90.2%) 0.48
Taller shape 5 (16.1%) 7 (17.1%) 0.83
Microcalcifications 14 (45.2%) 21 (51.2%) 0.78
Intranodular vascularization 17 (54.8%) 20 (48.8%) 0.78
Score III to IV at elastography 26 (83.9%) 32 (78.0%) 0.75
More than two risk features 15 (48.4%) 17 (41.5%) 0.72
  1. Legend: CNB, core needle biopsy; FNA, fine-needle aspiration. Marked hypoechogenicity, solid hypoechoic nodule with no cystic areas. Taller shape, taller than wide shaped nodule. Microcalcifications, hyperechoic punctuations <2 mm. Intranodular vascularization, intralesional vascular signal. Score III to IV at elastography, blue color in more than 50% of the nodule.