Table 2.

The comparison of three cases.

Reporter	Age (years)	Sex	Primary disease	Causative bacteria	Treatment	Outcome
Present case	80	Male	None	Streptococcus intermedius	Antibiotics Drainage	Transfer
Liu et al. [4]	48	Male	Diabetes	Streptococcus milleri	Operation Antibiotics Drainage	Discharge
Ito and Miura [5]	78	Male	Diabetes	Negative	Antibiotics Drainage	Discharge