Table 1 Characteristics of the cholecystitis caused by Actinomyces species [3,4,5,6,7,8,9,10,11,12,13,14,15]

Number of cases—no.

22

Male:female

1:1

Average of age—year [range]

63.1 [41–86]

Gall stone—no. (%)

14 (63.6)

Liver abscess—no. (%)

2 (9.1)

Species—no.

 A. naeslundii

7

 A. islaelii

3

 Not identified

12

Gram stain positive—no

12

Bile culture positive—no

6

Past history of cholecystitis—no. (%)

6 (27.3)

Average of treatment duration—days [range]

109 [5–270]