ABSTRACT
A.Cryptoglandular infection The majority of anorectal suppurative disease results from obstruction and infection of the ducts of mucous-secreting anal
glands (cryptoglandular infection) found in the intersphincteric plane. Their ducts traverse the internal sphincter and empty into the anal crypts at the level of the dentate line. Infection of an anal gland results in the formation of an abscess that enlarges and spreads along one of several planes in the perianal and perirectal spaces, which are unable to resist the spread of infection and leads to various clinical presentations at the perineum (Figure 57.1).
