In the modern era, it is usually diagnosed by CT scans of the abdomen and pelvis. Bacteriology is often polymicrobial and blood cultures are positive in some cases. A significant fraction of people presenting with this condition have an underlying hypercoagulable state.
Pylephlebitis
Appendicitis
Cholecystitis
Peritonitis
Parotitis
Phlebitis
Oophoritis
Cholangitis 