title: [Sixty-two cases report of surgical treatment of parotid pleomorphic adenoma].
abstract: OBJECTIVE
  To define the most appropriate surgical modality for parotid pleomorphic adenoma (PPA).
  
  
  METHODS
  Sixty-two cases with PPA who underwent surgical treatment from January 1996 and December 2003 were reviewed retrospectively. The course of disease before treatment, tumor size, surgical modality, post-operative histopathological findings, recurrence and the complications were analyzed.
  
  
  RESULTS
  There have been no recurrence in all 44 patients operated by superficial parotidectomy (SP), in all 16 patients operated by partial superficial parotidectomy plus partial deep parotidectomy (PSP + PDP), and in all 2 cases operated by total parotidectomy (TP). Pathological findings showed that in 6 cases (10%) the capsule of PPA was incomplete in focal areas and leaded to instances of positive margins, and in 28 cases (45%) the proliferation and mitosis were found in tumor cells with capsule invasion. 2 cases (4.5%) treated by SP had transient facial nerve dysfunction, while none of the 16 cases treated by PSP + PDP had facial nerve dysfunction. Frey syndrome occurred in 8 cases (18%) treated by SP, in 2 cases (13%) treated by PSP + PDP and in all 2 cases (13%) treated by total parotidectomy. The total rate of Frey syndrome in all 62 cases was 19.3%.
  
  
  CONCLUSIONS
  For the superficial PPA smaller than 4 cm, surgical procedure of PSP + PDP is as efficacy as SP, with relatively lower rates of complications like facial nerve dysfunction and Frey syndrome.
authors.affiliation: Department of Otorhinolaryngology Head Neck Surgery, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China. zhlwc@online.sh.cn
authors.forename: Liang
authors.initials: L
authors.lastname: Zhou
authors.forename: Cai
authors.initials: C
authors.lastname: Li
authors.forename: Xiao-tong
authors.initials: XT
authors.lastname: Zhang
mesh_terms: D008949:Adenoma, Pleomorphic / Q000473:pathology / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000473:pathology / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult