Table 1: Clinical features of the series patients. N = 23.

Parameter

n

Age (years)

23-70

Gender

Male

20

Female

3

Smoking history

Positive

1

Negative

22

Diabetes mellitus

Positive

1

Negative

22

High blood pressure

Positive

2

Negative

21

Obesity (BMI)

> 25

7

< 25

16

Evolution time (months)

4-24

Previous surgery

Yes

10

No

13

Previous seton

Yes

9

No

14

BMI = body mass index.