| Theme |
Diagnosis and Treatment of Anorectal Disease |
| Title |
Anal Strictures |
| Author |
Yasuhide Matsuda |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Soichi Tanaka |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Noritaka Oda |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Yasuo Nagashima |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Yusuke Tajima |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Yoshiko Aikawa |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| Author |
Satoshi Matsuda |
Colo-proctological Institute, Matsuda Hospital, Division of Colo-proctological Surgery |
| [ Summary ] |
The anal canal is composed of the anal epithelium, sphincter, and levator muscle. Although many complications occur in the anal strictures, chronic fissures are most common. These are differentiated from inflammatory fibrosis in the epithelium or internal sphincter. Surgical treatment methods for this condition are comparatively easy. Postoperative complications may include Whiteheadʼs anus. Some important diseases, such as anorectal cancer, may also be associated. In cases of ischio-rectal fistulas or extra-pelvic fistulas, Crohnʼs disease with anal lesions may be a complication. Full knowledge and skilled treatment techniques are required for proper treatment. First, we must be familiar with the anatomical composition and physiological functions of the anus. Further advances in understanding anal function are required. The normal size of anal canal or that in a stenotic condition must be determined. Proper size of the anus to maintain functionality must be determined. The first method to determine this is digital examination of the anal canal. |