Type C tunnel treated with the seton technique

The seton remained in place for 4 weeks. Tunnel depth decreased from 6 mm to 2.6 mm. Seton was then removed and a deroofing was performed under local anesthesia in the dermatologic office. Results, one month after deroofing. No lesion recurrence has been observed after a 3-month follow-up.

该装置于原位维持了4周。隧道深度从6毫米降至2.6毫米。随后在皮肤科诊所局部麻醉下进行了去顶手术。去顶术后一个月的观察结果。在随后的3个月随访期间，未观察到病灶复发。