title: Clinical pathology and recent follow-up study on gastric intraepithelial neoplasia and gastric mucosal lesions.
abstract: OBJECTIVE
  To explore the correlations between endoscopic gastric mucosal lesions and pathological gastric intraepithelial neoplasia (GIN), and to investigate outcomes of gastric intraepithelial neoplasia after treatments.
  
  
  METHODS
  Biopsies of 18,566 Chinese patients undergoing diagnostic gastroscopy were included. Among them, 130 patients were given various treatments, including medication, endoscopic treatment and surgery.
  
  
  RESULTS
  There were 433 patients with GIN by initial pathological diagnosis. Among them, 367 low-grade GIN and 66 high-grade GIN, 348 cases accompanied with chronic gastritis, and 85 cases accompanied with localized foci. Eighty cases of Hp-positive patients with low-grade GIN were given anti-Hp therapy. Our results showed that 45 cases of intraepithelial neoplasia disappeared when chronic inflammation left, and 33 cases were given the original diagnoses and two cases developed into high-grade GIN. Surgery was then performed, after which one case was confirmed to have early gastric carcinoma, and the other was diagnosed as advanced gastric carcinoma. Pathological examinations were carried out undergoing EMR or ESD treatment for 18 patients with localized foci accompanied with low-grade GIN. Results showed four cases of chronic inflammation, 11 cases with original diagnoses maintained, and three cases of high-grade GIN.
  
  
  CONCLUSIONS
  GIN occurred frequently in patients with more severe pathological inflammations under endoscope, which also had certain correlations with intestinal metaplasia. After treatment, parts of low-grade GIN could be reserved. The effect of endoscopic resection on localized foci accompanied with low-grade GIN was affirmative. However, the limitation of endoscopic biopsy should be fully understood.
authors.forename: Sheng-Bin
authors.initials: SB
authors.lastname: Sun
authors.forename: Zhi-Tao
authors.initials: ZT
authors.lastname: Chen
authors.forename: Dan
authors.initials: D
authors.lastname: Zheng
authors.forename: Man-Ling
authors.initials: ML
authors.lastname: Huang
authors.forename: Dan
authors.initials: D
authors.lastname: Xu
authors.forename: Heng
authors.initials: H
authors.lastname: Zhang
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001706:Biopsy; D002278:Carcinoma in Situ / Q000473:pathology* / Q000601:surgery; D002681:China; D004359:Drug Therapy, Combination; D005260:Female; D005743:Gastrectomy; D005753:Gastric Mucosa / Q000473:pathology* / Q000601:surgery; D005757:Gastritis, Atrophic / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology*; D005773:Gastroscopy; D016481:Helicobacter Infections / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology*; D016480:Helicobacter pylori / Q000302:isolation & purification; D006801:Humans; D007089:Image Enhancement; D008297:Male; D008875:Middle Aged; D060787:Neoplasm Grading; D011237:Predictive Value of Tests; D054328:Proton Pump Inhibitors / Q000627:therapeutic use; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents; D054328:Proton Pump Inhibitors