Anal fistula is a chronic abnormal communication between the epithelialised surface of the anal canal and usually the perianal skin. They can form when anal abscesses do not heal properly. Anal fistulae originate from the anal glands , which are located between the internal and external anal sphincter and drain into the anal canal. The tract formed by this process is a fistula. Abscesses can recur if the fistula seals over, allowing the accumulation of pus.
Anal Fistula - Risk Factors - Clinical Features - TeachMeSurgery
Last updated: May 18, Revisions: The majority are associated with anorectal abscess formation, with one third of patients with an anorectal abscess having an associated perianal fistula at the time of presentation. Anal fistulae usually present with either 1 recurrent perianal abcesses 2 intermittent or continuous discharge onto the perineum , including mucus, blood, pus, or faeces. Figure 1 — The Goodsall rule, used clinically to predict the course of a fistula tract. Proctoscopy can be used to visualise the opening of the tract in the anal canal.
Un absceso anal es una cavidad infectada llena de pus cerca del ano o el recto. Los pacientes con tendencia a contraer infecciones graves debido a la diabetes o problemas de inmunidad pueden necesitar ser hospitalizados. Search for:. Anal Cancer Expanded Version.
An anal abscess is an infected cavity filled with pus found near the anus or rectum. Ninety percent of abscesses are the result of an acute infection in the internal glands of the anus. Occasionally, bacteria, fecal material or foreign matter can clog an anal gland and tunnel into the tissue around the anus or rectum, where it may then collect in a cavity called an abscess.