Editor's quiz: GI snapshot
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From the question on page 10.1136/gut.2006.119149
Metronidazole was given and the bloody stool and fever gradually subsided. After 3 days of treatment with metronidazole, we no longer found B hominis in the pus draining from the liver abscess. After 1 month of metronidazole treatment, the serum IHA titre decreased to 1:64.
PCR was performed to try to clarify the identity of the infecting organisms. Primers were designed based on the published E histolytica genome sequences.1 The result of the PCR was positive for E histolytica. Based on these findings, the final diagnosis was amoebic dysentery and liver abscess, the latter coinfected with B hominis. At outpatient follow-up, the liver lesion was found to be resolving. In amoebic liver abscess, the sensitivity of microscopic exam is <20%. Even in amoebic colitis, trophozoites are found in only 25–60% of stool samples.2
Because B hominis in a liver abscess has not
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Gut 2008 57: 627.[Extract] [Full Text] [PDF]
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