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Appendicitis-Associated Pylephlebitis With Superior Mesenteric Vein Thrombosis and Portal Vein Extension: A Case

Luis Alberto Ortega-Zapata1, Alejandro Hernández-Alejo1, Aldo M Pacheco-Carrillo1

  • 1Department of Radiology, "Dr. José Eleuterio González" University Hospital, Universidad Autonoma de Nuevo Leon, Monterrey, MEX.

Cureus
|June 26, 2026
PubMed

Insights

Suppurative pylephlebitis with superior mesenteric vein (SMV) thrombosis is a rare appendicitis complication. Early CT evaluation and serial imaging are crucial for detecting thrombus progression and managing septic complications.

Area of Science:

  • Medical Imaging
  • Vascular Surgery
  • Gastroenterology

Background:

  • Appendicitis can lead to rare but serious complications like suppurative pylephlebitis.
  • Superior mesenteric vein (SMV) thrombosis is a critical manifestation of pylephlebitis.
  • Contrast-enhanced computed tomography (CT) is vital for diagnosis.
Keywords:
abscessacute appendicitiscomputed tomographyportal vein pylephlebitisportomesenteric thrombosissuperior mesenteric vein thrombosis

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