title: [Surgical Diagnosis and Treatment of Primary Hyperthyroidism Complicated with Occult Thyroid Carcinoma].
abstract: OBJECTIVE
  To evaluate the surgical diagnosis and treatment of primary hyperthyroidism complicated with occult thyroid carcinoma.
  
  
  METHODS
  Data of 51 cases of primary hyperthyroidism complicated with occult thyroid carcinoma admitted during January 2004 to November 2014 were analyzed retrospectively.
  
  
  RESULTS
  The incidence of occult thyroid carcinoma was 5.03% in hyperthyroidism,and 47 cases (92.16%) were female. The preoperative diagnosis of all these 51 cases was primary hyperthyroidism and 11 cases were diagnosed thyroid carcinoma at the same time;25 cases were diagnosed thyroid carcinoma by frozen section and the remaining 26 cases were diagnosed by postoperative pathology. Finally,26 cases underwent subtotal thyroidectomy,4 cases underwent total thyroidectomy, and 21 cases underwent total thyroidectomy with lymphadenectomy. The tumor size ranged from 0.1 to 1.0 cm [mean:(0.63 ± 0.35) cm]. The lesions were less than or equal to 0.5 cm in 28 cases (54.9%). The follow-up lasted from 1 to 121 months [mean:(28.6 ± 22.7)months] in 43 patients,and all of them survived.
  
  
  CONCLUSIONS
  Primary hyperthyroidism complicated with occult thyroid carcinoma is commonly found in female patients. Preoperative diagnosis is difficult. Ultrasound is the major examining method. Frozen section can increase the detection rate. The postoperative prognosis of hyperthyroidism complicated with occult thyroid carcinoma is satisfactory.
authors.affiliation: Department of General Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wu
authors.affiliation: Department of General Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
authors.forename: Jian-chun
authors.initials: JC
authors.lastname: Yu
authors.affiliation: Department of General Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
authors.forename: Wei-ming
authors.initials: WM
authors.lastname: Kang
authors.affiliation: Department of General Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
authors.forename: Zhi-qiang
authors.initials: ZQ
authors.lastname: Ma
authors.affiliation: Department of General Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
authors.forename: Xin
authors.initials: X
authors.lastname: Ye
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006980:Hyperthyroidism; D015994:Incidence; D011379:Prognosis; D012189:Retrospective Studies; D013964:Thyroid Neoplasms; D013965:Thyroidectomy