title: [The pathologic basis of partial parotidectomy in parotid pleomorphic adenoma treatment].
abstract: OBJECTIVE
  The purpose of this study was to offer pathological reasons for partial parotidectomy adopted in parotid pleomorphic adenoma treatment.
  
  
  METHODS
  Continuous slices from 25 cases of primary parotid pleomorphic adenoma were carefully examined and the extra-envelope infiltration, the budding and the primary multi-center were measured and recorded.
  
  
  RESULTS
  The range of extra-envelope infiltration and budding was limited in 0.09-0.285 mm out of tumor capsules, which was far less than the safe boundary(1 cm) of the partial parotidectomy. Two cases with multi-centers were found, but all the centers were aggregated together and encapsulated in a united envelope.
  
  
  CONCLUSIONS
  Partial parotid parotidectomy is a safe method and can remove the tumor completely in parotid plemorphic adenoma treatment.
authors.affiliation: Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Yuming
authors.initials: Y
authors.lastname: Wen
authors.forename: Runliang
authors.initials: R
authors.lastname: Chen
authors.forename: Changmei
authors.initials: C
authors.lastname: Wang
mesh_terms: D008949:Adenoma, Pleomorphic / Q000473:pathology* / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019647:Oral Surgical Procedures / Q000379:methods; D010306:Parotid Gland / Q000473:pathology / Q000601:surgery; D010307:Parotid Neoplasms / Q000473:pathology* / Q000601:surgery*