Case List History Objectives Radiology Images Questions COLORECTAL DISEASE Case #9 - 28 year old male presents with purulent drainage DISCUSSION QUESTIONS: 3.) If an anal fistula is not healing or is recurrent, what are possible causes? Other causes of fistulas: trauma, Crohn's disease, malignancy, radiation, unusual infections such as tuberculosis, actinomycosis, or chlamydia.
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