title: [Feasibility of 13th lymph nodes as sentinels for periampullary carcinoma].
abstract: OBJECTIVE
  To study the feasibility and clinical value of 13th lymph nodes in predicting general lymph nodes metastases for periampullary carcinoma.
  
  
  METHODS
  A total of 77 patients with pathologically confirmed periampullary carcinoma were recruited. And 26 (18 males and 8 females, age 38-79 years) of them underwent Whipple procedures during which 1% methylene blue or nanogate carbon was injected into tumor bed. The other 51 patients as controls (33 males, 18 females, age 38-78 years) . The dyed 13th lymph nodes were biopsied. Then routine lymphadenectomy was performed and their pathological results were analyzed.
  
  
  RESULTS
  In the experimental group, the lymph node drainage area of cancer was identified. However, in contrast with 51 patients in the control group, the labeling of 13th lymph nodes did not significantly increase the number of cleaned lymph nodes (15.8 (3-54) vs 17.6 (6-40) , P = 0.460).
  
  
  CONCLUSIONS
  13th lymph nodes are non-suitable as sentinels for predicting general lymph nodes metastases of periampullary carcinoma.
authors.affiliation: Department of Abdominal Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China.
authors.forename: Xiao-feng
authors.initials: XF
authors.lastname: Bai
authors.forename: Ye-fan
authors.initials: YF
authors.lastname: Zhang
authors.forename: Dong-bing
authors.initials: DB
authors.lastname: Zhao
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
mesh_terms: D000328:Adult; D000368:Aged; D004379:Duodenal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000175:diagnosis / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D021701:Sentinel Lymph Node Biopsy / Q000379:methods*