Variables

Effectif (n = 61)

Percentage

Topography

Right unilobal

11

18.0

Left unilobar

13

21.3

Isthmus

23

37.7

Bilobar

14

23.0

Nodule number

1

21

34.4

2

19

31.1

≥3

21

34.4

Outlines

Irregular

9

14.8

Regular

52

85.2

Form

Oval

54

88.5

Rounded

7

11.5

Echogenicity

Hypoechoic

12

19.7

Isoechogenic

38

62.3

Hyperechoic

11

18.0

Echostructure

Solid

33

54.1

Liquid

3

4.9

Mixed

25

41.0

Vascularization

Central

35

57.4

Others

26

42.6

Calcifications

No

47

77.0

Yes

14

23.0