Vermiform appendix torsion complicated by postoperative venous pylephlebitis: a case report and review of literature.

Vermiform appendix torsion is a rare condition that mimics acute appendicitis and is diagnosed during surgery. On the other hand, pylephlebitis (or septic thrombophlebitis) is a complication that occurs due to occlusive thrombosis of mesenteric venous system branches secondary to intra-abdominal infections. Although rare since the antibiotic era, it must be considered in the differential diagnosis of postoperative fever.