Epidemiology


Etiology


Pathophysiology


Anatomy of the anal canal

Tip

  • Think the rectum above the pectinate line is still part of GI tract, so it’s all related to GI (inferior mesenteric artery/vein, inferior hypogastric plexus)
  • Think the rectum below the pectinate line is part of genitalia, so it’s all related to pudendum (internal pudendal artery/vein, pudendal nerve)

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Clinical features


Diagnostics


Treatment


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