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Perianal Abscess in Crohn's — RACP Paediatrics MCQ

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ModerateGastroenterologyPerianal Abscess in Crohn'sRACP Paediatrics

A 5-year-old with known IBD presents with severe perianal abscess requiring surgical drainage. What organism should drainage cultures be sent for in addition to standard bacteria?

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Correct answer: B — Standard aerobes and anaerobes only

Perianal abscess in IBD (especially Crohn's) should have drainage material sent for aerobic and anaerobic cultures. Standard organisms include mixed enteric flora. TB should be considered only with specific risk factors. MRI pelvis is important for assessing the extent of perianal disease and fistulae.

Reference: AUSPGHAN – 2024 – Management of Perianal Crohn's Disease