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Microscopic Venous Invasion in Pancreatic Cancer

Mihoko Yamada1,2, Teiichi Sugiura3, Yukiyasu Okamura1

  • 1Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan.

Annals of Surgical Oncology
|January 6, 2018
PubMed
Abstract

Insights

Microscopic venous invasion (MVI) is common in pancreatic cancer, affecting two-thirds of patients. Identifying MVI is crucial as it significantly worsens prognosis and indicates potential systemic disease.

Area of Science:

  • Oncology
  • Surgical Pathology
  • Cancer Dissemination

Background:

  • Microscopic venous invasion (MVI) is a key pathway for pancreatic cancer cell spread.
  • Understanding MVI's role is critical for predicting patient outcomes.

Purpose of the Study:

  • To investigate the prognostic significance of MVI in pancreatic ductal carcinoma.
  • To evaluate MVI as a factor in cancer staging and patient survival.

Main Methods:

  • Retrospective review of 352 patients undergoing pancreatectomy for invasive ductal carcinoma.
  • Pathologic examination to identify MVI.
  • Multivariate analysis to determine prognostic factors.

Main Results:

  • MVI was present in 64.5% of patients.
  • Patients with MVI had a significantly shorter median survival (21 months vs. 58 months).
  • MVI was an independent prognostic factor for poor survival, alongside chemotherapy, lymph node metastasis, and CA19-9 levels.

Conclusions:

  • MVI is prevalent in resectable pancreatic cancer and suggests systemic disease.
  • MVI is a significant predictor of poor prognosis.
  • MVI can enhance current tumor-node-metastasis staging systems.

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