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Amoebic Abscess Aspiration Criteria — SCE Infectious Diseases MCQ

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HardTropical & Imported InfectionsAmoebic Abscess Aspiration CriteriaSCE Infectious Diseases

A patient with amoebic dysentery has a 6-cm left-lobe liver abscess and persistent pain after several days of metronidazole. Which additional step is appropriate?

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Correct answer: A — Arrange image-guided aspiration and ensure a luminal amoebicide follows tissue treatment

The best answer is “Arrange image-guided aspiration and ensure a luminal amoebicide follows tissue treatment”. Large left-lobe lesions, impending rupture, diagnostic uncertainty or failure to improve are accepted reasons for aspiration; metronidazole does not eradicate intraluminal colonisation, so luminal therapy is still required. Metronidazole must be followed by a luminal amoebicide; aspiration is reserved for diagnostic uncertainty, poor response, large or left-lobe lesions and impending rupture.

Reference: Clinical review of amoebic liver abscess management: https://pmc.ncbi.nlm.nih.gov/articles/PMC9453321/