第十节直肠肛管周围脓肿（Tenth perianal abscess）.docVIP

第十节直肠肛管周围脓肿（Tenth perianal abscess） Tenth perianal abscess Abscess (perianorectal) refers to the space around or around the soft tissues of the rectum and anal canal An acute purulent infection occurs, and an abscess is formed. Abscess incision and drainage or often formed anus. The abscess is straight from the anal canal Tulsa 14 The acute stage of peripheral inflammation is manifested, while the anal recurrence is the chronic stage. The etiology and pathology are that most perianal abscesses are caused by infection of the anal glands. Anal glands open in anal sinuses, mostly located in the anal sinus Between the internal sphincter and the external sphincter. Because the anal sinus opening upwards, diarrhea, constipation can cause anal sinusitis, infection and anal gland after the first easy An infection of the sphincter (Fig. 40-30) occurs. The loose space around the rectum and anus is loose connective tissue, which is very susceptible to infection Extension, diffusion, up to the rectum around the formation of high intermuscular abscess or anorectal space abscess; to the release of perianal subcutaneous, The formation of perianal abscess; outward through the external sphincter, the formation of the anorectal space abscess; backward formation of anal canal, clearance, abscess Abscess of posterior rectum space. With the levator ani muscle as the boundary, the abscess around the anal canal is divided into the levator ani muscle abscess and the upper part of levator ani muscle Abscess: the former includes abscess around the anus and the abscess of the rectum and rectum. The latter includes the pelvis, rectum, space, abscess, and rectum Interstitial abscess, high intermuscular abscess (Fig. 40-31) 0 Anal canal Physiological sphincter Pelvic rectum Anal canal two tongue about Intermuscular I9t External anal sphincter Anal canal Perianal space clearance Figure 40-30 infection pathways around the anorectal space Submucous abscess Levator ani muscle Anorectal space abscess