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Q50 Single choice

Which of the following is true regarding anorectal abscess and fistula?

A
The most common cause is a subepithelial extension of a genital infection.
B
Conservative management should always be considered for fistula-in-ano as many heal spontaneously.
C
Most acute anorectal abscesses require a course of antibiotics.
D
The treatment protocol is not altered for patients with valvular heart disease.
E
Anal fistula is classified as intersphincteric, transsphincteric, suprasphincteric, or extrasphincteric.

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