title: [Comparison of curative effect for colon flat lesion between mucosa resection and fulguration with high frequency current after mucosa staining under magnifying endoscope].
abstract: OBJECTIVE
  To observe the relationship between the pit patterns and pathology and compare the curative effect for colon flat lesion between endoscopic mucosa resection (EMR) and fulguration with high frequency current (FHFC).
  
  
  METHODS
  They were divided to two groups. There were 37 cases for FHFC in group A, and 34 cases for EMR in Group B. The two groups were comparabal. Examining patients suffering with colon flat lesions with magnifying endoscope and observing the pit patterns of mucosa after staining with indicarmine.
  
  
  RESULTS
  The pit patterns of inflammatory or hyperplastic lesions were mainly pit II, adenoma pit III and pit IV, and carcinomatous lesions pit IV and pit V. The worse the differentiation degree of lesions was, the higher the pit patterns were. There were no difference (P > 0.05) between group A and B in complication and quantity, classification and distribution of lesions. No canceration was detected in 21 cases with adenoma in group A, while 4 cases of canceration (all were adenocacinoma) was found in 20 cases whith adenoma in group B. There was significance in canceration between two groups (P < 0.05).
  
  
  CONCLUSIONS
  The worse the differentiation degree of lesions was, the higher pit patterns were. EMR and FHFC share the same validity and security when treating the flat lesions, but by EMR, doctors could judge whether the lesions were resected completely, once the remained lesions were found, they could be resected immediately again lesion in case of omission of canceration.
authors.affiliation: Institute of Gastrointestinal of PLA, Nanfang Hospital, First Military Medical University. Guangzhou, 510515, China.
authors.forename: Fachao
authors.initials: F
authors.lastname: Zhi
authors.forename: Bo
authors.initials: B
authors.lastname: Jiang
authors.forename: Side
authors.initials: S
authors.lastname: Liu
authors.forename: Dan
authors.initials: D
authors.lastname: Zhou
authors.forename: Tian mo
authors.initials: Tm
authors.lastname: Wan
authors.forename: Deshou
authors.initials: D
authors.lastname: Pan
authors.forename: Lihui
authors.initials: L
authors.lastname: Wang
authors.forename: Dianyuan
authors.initials: D
authors.lastname: Zhou
mesh_terms: D000328:Adult; D000368:Aged; D003106:Colon / Q000473:pathology*; D003113:Colonoscopy / Q000379:methods; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D004564:Electrocoagulation / Q000379:methods*; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D013194:Staining and Labeling / Q000379:methods