Acute pylephlebitis following gastrointestinal infection: an unrecognized cause of septic shock.

Pylephlebitis is the septic thrombosis of the portal vein. Hypercoagulability and intra-abdominal sepsis are the main predisposing factors. A 25-year-old man presented to a primary health care center complaining of fever, epigastric pain, and jaundice.