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Table 4 Association between sonographic characteristics and histopathological diagnosis of malignancy.*

From: Bethesda Category III thyroid nodules: descriptive cytological aspects of a series

 

Malignant (n = 16)*

Total cases

p-valor**

Echogenicity

Hypoechogenic

7 (43.7%)

26

.558

Isoechogenic

6 (37.5%)

20

Hyperechogenic

3 (18.7%)

17

Doppler vascular flow

Central flow

1 (6.2%)

4

.694

Peripheral flow

5 (31.2%)

23

Mixed flow

5 (31.2%)

16

No flow

5 (31.2%)

22

Microcalcifications

Present

1 (6.2%)

6

.193

Node margins

Poorly defined margins

7 (43.7%)

14

.228

  1. *One classic papillary carcinoma had no ultrasound data in the medical record. ** Chi−square or Fisher's exact test when appropriate, p <.05