瘘管切除术

Pencreatic fistulectomy

Anal fistulectomy or fistulotomy with hemorrhoidectomy

Urethral fistulectomy(posterior)

Fistulotomy or fistulectomy,complicated, subcutaneous

Fistulotomy or fistulectomy,simple, subcutaneous

Urethral fistulectomy(anterior)

fistulectomy

anal fistulectomy【外科】