title: Lymphatic vessel invasion detected by monoclonal antibody D2-40 as a predictor of lymph node metastasis in T1 colorectal cancer.
abstract: OBJECTIVE
  When selecting patients who are at high risk for lymph node metastasis, the detection of lymphatic vessel invasion (LVI) is important. We investigated LVI detected by D2-40 staining as a predictor of lymph node metastasis in T1 colorectal cancer.
  
  
  METHODS
  Clinicopathological factors including LVI were investigated in 136 patients who underwent colectomy with lymph node dissection for T1 colorectal cancer. We used immunostaining with monoclonal antibody D2-40 to detect LVI.
  
  
  RESULTS
  Lymph node metastases were found in 18 patients (13.2%), and LVI were detected in 45 (33%); lymph node metastasis was more frequently observed in LVI-positive groups (13/45 vs 5/91, p < 0.001). Both univariate and multivariate analyses revealed that LVI detected by D2-40 and a poorly differentiated histology at the invasion front were independent risk factors of lymph node metastasis.
  
  
  CONCLUSIONS
  LVI detected by D2-40 is important for the prediction of lymph node metastasis.
authors.affiliation: Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8777, Japan. m.ishii@scchr.jp
authors.forename: M
authors.initials: M
authors.lastname: Ishii
authors.forename: M
authors.initials: M
authors.lastname: Ota
authors.forename: S
authors.initials: S
authors.lastname: Saito
authors.forename: Y
authors.initials: Y
authors.lastname: Kinugasa
authors.forename: S
authors.initials: S
authors.lastname: Akamoto
authors.forename: I
authors.initials: I
authors.lastname: Ito
mesh_terms: D000911:Antibodies, Monoclonal; D015179:Colorectal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000175:diagnosis*; D042601:Lymphatic Vessels / Q000473:pathology*; D008297:Male; D009361:Neoplasm Invasiveness / Q000175:diagnosis* / Q000276:immunology; D011237:Predictive Value of Tests
chemical_list: D000911:Antibodies, Monoclonal