Table 1

 Clinical data on patients in the control group

NoSexAge at surgery (y)Fistula locationClinical diagnosis
1M49Skin, cervicalRecurring cervical fistulae after squamous cell carcinoma of the tongue
2M40PerianalRecurring perianal fistulae, exclusion of CD
3F79Skin, abdominalFistula of the skin, abdominal
4M34PerianalSinus peronidalis with recurring perianal fistulae
5F51StomachFistula of the stomach after ulcus ventriculi
6M63Oral cavityDental abscess with recurring fistulae of the oral cavity
7F42PerianalFistula after periproctitic abscess, since 1994 until 2003 no CD, 2003 breast cancer
42Perianal
8M47Skin, thoracalFistula after thoracal abscess
47Skin, thoracal
9F73VaginalVaginal fistula after radiation of vaginal squamous cell carcinoma
10M41PerianalSinus pilonidalis with recurring perianal fistulae
11F21PerianalSinus pilonidalis with perianal fistula