Anal Abscess and Fistula
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Introduction
Fistulas are recurrent anal abscesses.
The Case of...
Causes and Risk Factors
Pathophysiology
Anal glands are normally found surround the gland. Blockage of these glands trap bacteria and stool, forming localized infection.
These pus-filled spaces travel downwards and drain either between the anal sphincters (perianal abscess) or beyond the sphincters (ischioanal abscess)
Fistulas
Goodsall's rule states that anterior, while posterior....
Signs and Symptoms
- history
- physical exam
History
pain is the predominant presentation
Physical Exam
Investigations
- lab investigations
- diagnostic imaging
Lab Investigations
Diagnostic Imaging
Differential Diagnosis
Treatments
Abscesses are surgical problems. They can be drained by the family physician or the emergency physician. An area of tissue should be excised to allow sufficient healing. They can be treated via local or general anesthetic.
Antibiotics are usually not needed. Considerations include diabetes, cellulitis, or immunosuppressed patients.
Some fistulas can be treated via a seton, a temporizing measure.
Consequences and Course
The Case of...
Additional Resources
Topic Development
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