The natural history of fistulizing Crohn's disease in Olmsted County, Minnesota. These are the internal and external sphincters. These fistulas are usually caused by an appendiceal abscess, diverticular abscess or Crohn's disease. Retrieved from " https: The following may be symptoms or signs of an anal fistula: The anal sphincters are important for controlling bowel movements.
Thereafter, focusing on the intra-anal marker, the sequence is repeated with use of the same parameters in the true midcoronal and midaxial oblique planes taken parallel and perpendicular, respectively, to the long anal axis, for evidence of various components of the anal sphincter complex, without the distortion of the anatomy caused by the use of internal coils.
Practical MR Imaging of Anal Fistula Disease: How We Do It
Just inside the anus are a number of small glands. Call your healthcare provider if you have symptoms of an anal fistula, especially if you have a history of a previous anal abscess. Other findings included distant extension to adjacent structures and additional tracts Treatment of an anal fistula is attempted with as little impact as possible on the sphincter muscles. This procedure is used for fistulas that form between the internal and external sphincters.