Terms

Number of patient (N = 124)

Frequency (%)

Laterality of the lesion

Left unilateral

82

66.1

Rigth unilateral

42

33.9

Type of perforation

Unique

118

95.2

Multiple

4

3.2

Sub totale

1

8

Total

2

1.6

Perforation Seat

Anterior inferior

77

62.1

Posterior inferior

57

46.0

Anterior superior

34

27.4

Posterior superior

24

19.4

Shape of the perforation

Punctiform

41

33.1

Oval

46

37.1

Linear

13

10.5

Circular

10

8.1

triangular

7

5.6

Others

13

10.5