title: [Comparative analysis between biopsy-diagnosed high grade intraepithelial neoplasia in the gastric mucosa and postoperative pathological findings].
abstract: OBJECTIVE
  To investigate the association between the morphological features of biopsy-diagnosed high grade intraepithelial neoplasia in the gastric mucosa and the postoperative pathology.
  
  
  METHODS
  Fifty-one patients with biopsy-diagnosed high grade intraepithelial neoplasia in the gastric mucosa were retrospectively analyzed. Thirty-three patients underwent surgery. The morphology of lesions under endoscopy and histopathological findings of the surgical specimens were investigated.
  
  
  RESULTS
  Of the 51 patients, 43 had superficial lesions similar to early gastric cancer under endoscopy, 8 were similar to advanced carcinoma. In the 33 surgical cases, high grade intraepithelial neoplasia of gastric mucosa was confirmed on postoperative pathological examination in 13 (39.4%) patients, adenocarcinoma was identified in the remaining 20 patients (60.6%), including 14 early gastric cancers and 6 advanced carcinomas. Thirteen cases with high grade intraepithelial neoplasia confirmed postoperatively were superficial elevated or flat lesions less than 20 mm.
  
  
  CONCLUSIONS
  Patients with biopsy-diagnosed high grade intraepithelial neoplasia in the gastric mucosa have a high risk of cancer. Thus aggressive follow-up and appropriate surgical interventions are recommended to avoid misdiagnosis.
authors.affiliation: Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou 310014, China. ruanhongjun@yahoo.cn
authors.forename: Hong-jun
authors.initials: HJ
authors.lastname: Ruan
authors.forename: Qin-shu
authors.initials: QS
authors.lastname: Shao
authors.forename: Zhong-sheng
authors.initials: ZS
authors.lastname: Zhao
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D019048:Prostatic Intraepithelial Neoplasia / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*