BACKGROUND: Unlike other gastrointestinal tumors, lymph node involvement has not consistently been a negative prognostic factor for survival in patients with duodenal adenocarcinoma. Our aim is to examine prognostic factors in patients who underwent a curative resection of their duodenal adenocarcinoma. METHODS: A retrospective review of 169 patients diagnosed with primary duodenal lesions between 1982 and 2010 was performed, of whom 103 were treated with curative intent. Clinico-pathologic factors were evaluated. RESULTS: A potentially curative resection was performed in 103 patients with a median age of 67 years (range, 22-91). Perineural and lympho-vascular invasion were identified in 30 (29.1%) and 39 patients (37.9%), respectively. Median follow-up was 26.5 months. The 5-year overall survival was 62% vs. 25% for patients with or without nodal metastases (p < 0.001) and 56% vs. 19% for patients with or without perineural invasion (p < 0.001), respectively. Lymph node ratio, type of resection, and size of tumor failed to stratify prognosis. By multivariate analysis, perineural invasion was the most powerful independent predictor of survival (HR, 2.520; CI, 1.361-4.664). CONCLUSIONS: Perineural invasion is a stronger predictor for recurrence and survival than tumor size, depth of infiltration, lymph node involvement, and type of resection in patients with duodenal adenocarcinoma.
BACKGROUND: Unlike other gastrointestinal tumors, lymph node involvement has not consistently been a negative prognostic factor for survival in patients with duodenal adenocarcinoma. Our aim is to examine prognostic factors in patients who underwent a curative resection of their duodenal adenocarcinoma. METHODS: A retrospective review of 169 patients diagnosed with primary duodenal lesions between 1982 and 2010 was performed, of whom 103 were treated with curative intent. Clinico-pathologic factors were evaluated. RESULTS: A potentially curative resection was performed in 103 patients with a median age of 67 years (range, 22-91). Perineural and lympho-vascular invasion were identified in 30 (29.1%) and 39 patients (37.9%), respectively. Median follow-up was 26.5 months. The 5-year overall survival was 62% vs. 25% for patients with or without nodal metastases (p < 0.001) and 56% vs. 19% for patients with or without perineural invasion (p < 0.001), respectively. Lymph node ratio, type of resection, and size of tumor failed to stratify prognosis. By multivariate analysis, perineural invasion was the most powerful independent predictor of survival (HR, 2.520; CI, 1.361-4.664). CONCLUSIONS: Perineural invasion is a stronger predictor for recurrence and survival than tumor size, depth of infiltration, lymph node involvement, and type of resection in patients with duodenal adenocarcinoma.
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