Review
Copyright ©The Author(s) 2017.
World J Gastroenterol. Jan 7, 2017; 23(1): 11-24
Published online Jan 7, 2017. doi: 10.3748/wjg.v23.i1.11
Figure 2
Figure 2 Keyhole deformity: After a previous fistulotomy, the anus is not patulous but appears to have a deformity (arrow).