title: [Clinical analysis on six cases of nonfunctioning parathyroid cysts].
abstract: OBJECTIVE
  To study the clinical and pathological characteristics of nonfunctioning parathyroid cysts.
  
  
  METHODS
  Six cases of nonfunctioning parathyroid cysts who were hospitalized during 1997-2007 were retrospectively analyzed. The clinical features, serum calcium, B-ultrasonic, CT and nuclide scanning were performed. Postoperative pathologic and immunohistochemistry detection in nonfunctioning parathyroid cysts were made.
  
  
  RESULTS
  Tumors in the 6 cases were underwent surgical ablation and diagnosis was verified by pathology. CgA (chromogranin A), Syn (synaptophysin), NSE (and neuron specific enolase) expressions were positive. Follow-up six months and five years after operation, there is no recurrence.
  
  
  CONCLUSIONS
  Surgical resection is most effective in treating nonfunctioning parathyroid cysts and diagnosis is made by pathologic examination.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, the First Affiliated Hospital, Zheng- zhou University, Zhengzhou, 450052, China.
authors.forename: Fangzhou
authors.initials: F
authors.lastname: Liu
authors.forename: Mingmin
authors.initials: M
authors.lastname: Dong
authors.forename: Yuan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
authors.forename: Qinhe
authors.initials: Q
authors.lastname: Fan
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D003560:Cysts / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010279:Parathyroid Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D012189:Retrospective Studies