Pyogenic liver abscesses associated with nonmetastatic colorectal cancers: An increasing problem in Eastern Asia

Table 2 Constituent ratio of pus bacterial cultures n (%)

Pathogens	Eastern Asia	Non-Eastern Asia	Total
	(n = 49)	(n = 9)	(n = 58)
Bacteria
Gram negative bacteria
Klebsiella pneumoniae	28 (57.14)	1 (11.1)	29 (50.0)
Fusobacterium species	4 (8.16)	0	4 (6.90)
Bacteroides species	2 (4.08)	1 (11.1)	3 (5.17)
Escherichia coli	0	1 (11.1)	1 (1.72)
Pseudomonas aeruginosa	1 (2.04)	0	1 (1.72)
Gram positive bacteria
Streptococcus species	1 (2.04)	3 (33.3)	4 (6.90)
Enterococcus faecium	2 (4.08)	0	2 (3.44)
Polymicrobial	0	2 (22.2)1	2 (3.44)
Amoebae	2 (4.08)	0	2 (3.44)
Negative	9 (18.37)	1 (11.1)	10 (17.24)

¹Pus cultures showed mixed infection in two patients: E. corrodens, Candida albicans and Candida glabrata; Peptostreptococcus anaerobius, Bacteroides melaninogenicus and Peptostreptococcus spp.