Liver abscess caused by Gram-negative spiral bacilli.

A man in his eighties presenting high fever accompanying right flank pain visited us. He had had an episode of several weeks of diarrhoea a month previously. Laboratory analysis showed an elevation of serum C-reactive protein (9.55mg dl ), and enhanced computed tomography showed a hepatic mass suggesting liver abscess (Fig. 1a). Pus was drained through percutaneous paracentesis, and Gram staining of the purulent material was performed (Fig. 1b).