This edition features as many as three case reports.

A particularly interesting is the case of a woman with an extensive fistula, probably resulting from abscessed rectus sheath hematoma. It is a truly unique case. Although I have been treating anal fistulas for a long time, I personally have never encountered such a case. This report demonstrates that a non-crypt-related etiology should always be considered in atypical, complex fistulas as the identification of an unusual cause tends to be the key to therapeutic success. The authors applied negative pressure wound therapy, which additionally accelerated the healing process.