Abstract
PURPOSE: This study was designed to determine clinical and pathologic variables associated with poor outcome following resection of Stage B colorectal cancer. METHODS: This was a retrospective study of 117 patients with Stage B cancer who underwent curative surgery and survived the postoperative period. Fourteen clinical and pathologic features were studied. Clinical data were extracted from a prospective colorectal cancer database, and histologic slides were retreived and examined by a pathologist blinded as to clinical details and outcome. RESULTS: After a median follow-up period of 8.2 years, bowel obstruction was significantly related to a poor prognosis (log-rank test; P=0.03). Extensive necrosis (P =0.01) and perineural invasion (P = 0.03) were also associated with decreased survival. Vascular invasion was associated with poor long-term outcome in the subgroup of patients with rectal (P =0.07) but not colonic (P =0.57) cancer. Multivariate regression analysis identified both tumor necrosis (P =0.01) and perineural invasion (P =0.03) as independently related to outcome. CONCLUSION: Further study of prognostic indicators might result in an algorithm to distinguish Stage B cases at high risk of tumor recurrence and death. Such patients could be included in future trials of adjuvant therapies.
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Mulcahy, H.E., Toner, M., Patchett, S.E. et al. Identifying Stage B colorectal cancer patients at high risk of tumor recurrence and death. Dis Colon Rectum 40, 326–331 (1997). https://doi.org/10.1007/BF02050424
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DOI: https://doi.org/10.1007/BF02050424