The relationship between tumor inflammatory cell infiltrate and outcome in patients with pancreatic ductal adenocarcinoma

Annals of Surgical Oncology
Nigel B JamiesonDonald C McMillan

Abstract

The tumor-associated inflammatory cell infiltrate is recognized to have prognostic value in various common solid tumors. However, the prognostic value of the tumor inflammatory cell infiltrate has not been established in pancreatic ductal adenocarcinoma (PDAC) nor has its relationship with the systemic inflammatory response. Retrospective study was made of 173 patients who underwent surgery between 1997 and 2009. Routine pathology specimens were scored according to density of the tumor inflammatory cell infiltrate, and biochemical data were collected preoperatively. Low-grade tumor inflammatory cell infiltrate was associated with earlier tumor recurrence (P < 0.001) and particularly in the liver (P = 0.027). It was also associated with T3 tumors (P < 0.05), lymph node involvement (P < 0.05), and resection margin involvement (P < 0.05). On univariate survival analysis, age <65 years (P < 0.05), mGPS (P < 0.001), increased tumor stage (P < 0.01), nodal involvement (P < 0.01), size (P < 0.05), grade (P < 0.05), perineural invasion (P < 0.05), venous invasion (P < 0.01), resection margin involvement (P ≤ 0.001), vascular reconstruction (P < 0.05), and no adjuvant chemotherapy (P < 0.05) were associated with poor survival. In contra...Continue Reading

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