Inflammatory tract originating from infected<unk>  gland connecting<unk>  canal with skin
May be intersphincteric, suprasphincteric, transsphincteric, or extrasphincteric
Goodsall's Rule
Draw imaginary line horizontally through the<unk>  canal
If external opening is anterior to this line<unk>  runs directly into the canal
If external opening is posterior to this line<unk>  curves to post midline of canal
May be intersphincteric, suprasphincteric, transsphincteric, or extrasphincteric
Draw imaginary line horizontally through the<unk>  canal
If external opening is anterior to this line<unk>  runs directly into the canal
If external opening is posterior to this line<unk>  curves to post midline of canal
If external opening is anterior to this line<unk>  runs directly into the canal
If external opening is posterior to this line<unk>  curves to post midline of canal
Perianal/ischiorectal abscess
Crohn's
Ulcerative colitis
Malignancy
STI<unk>  fissure
foreign bodies
TB
Anal fistula
Anal fissure
Anorectal abscess
Anal malignancy
Rectal prolapse
Anal tags
External hemorrhoid
Internal hemorrhoid