Anal fissure classification

Anal fissure Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Amandeep Singh M.D.[2]

Classification

• Anal fissure may be classified according to causative factors into 2 subtypes/groups:
  • Primary anal fissure- caused due to local trauma such as hard stools, prolonged diarrhea, vaginal delivery, repetitive injury or penetration.
  • Secondary anl fissure- caused due to previous surgical procedures in the anal area, inflammatory bowel disease,tuberculosis, sarcoidosis, HIV/AIDS, syphilis.

• [Disease name] may be classified into [large number > 6] subtypes based on:
  • [Classification method 1]
  • [Classification method 2]
  • [Classification method 3]
• [Disease name] may be classified into several subtypes based on:
  • [Classification method 1]
  • [Classification method 2]
  • [Classification method 3]

OR

• Based on the duration of symptoms, [disease name] may be classified as either acute or chronic.

OR

• If the staging system involves specific and characteristic findings and features:
• According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].

OR

• The staging of [malignancy name] is based on the [staging system].

OR

• There is no established system for the staging of [malignancy name].

References

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