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Anorectal abscess (also known as an anal/rectal abscess or perianal/perirectal abscess) is an abscess adjacent to the anus. [1] Most cases of perianal abscesses are sporadic, though there are certain situations which elevate the risk for developing the disease, such as diabetes mellitus, Crohn's disease, chronic corticosteroid treatment and others.
Anal fistula is a chronic abnormal communication between the anal canal and the perianal skin. [1] An anal fistula can be described as a narrow tunnel with its internal opening in the anal canal and its external opening in the skin near the anus. [2] Anal fistulae commonly occur in people with a history of anal abscesses. They can form when ...
Anorectal disorders include conditions involving the anorectal junction [1] as seen in the image. They are painful but common conditions like hemorrhoids, tears, fistulas, or abscesses that affect the anal region. [2] [3] Most people experience some form of anorectal disorder during their lifetime. [4]
An anal abscess, which is typically caused by a local infection, is another potential diagnosis for anorectal discomfort and may be accompanied by symptoms like fever or chills.
Perianal cellulitis, also known as perianitis or perianal streptococcal dermatitis, is a bacterial infection affecting the lower layers of the skin around the anus. [ 1 ] [ 2 ] [ 3 ] It presents as bright redness in the skin and can be accompanied by pain, difficulty defecating, itching, and bleeding.
The final structure of the abscess is an abscess wall, or capsule, that is formed by the adjacent healthy cells in an attempt to keep the pus from infecting neighboring structures. However, such encapsulation tends to prevent immune cells from attacking bacteria in the pus, or from reaching the causative organism or foreign object.
The inflammation is sometimes limited to the formation of an anorectal abscess, and in some cases it spreads for a considerable distance and may be complicated by sepsis. The symptoms are acute pain in the rectal region, tenderness during defecation, elevated body temperature, and the appearance of an infiltrate in the anal region or on the ...
An anorectal abscess is an infection that forms a pocket of pus within the tissues around the anus. It is treated surgically by incision and drainage. It is treated surgically by incision and drainage.