title: Thyroidectomy without lateral neck dissection for papillary thyroid carcinoma with lateral neck lymph node metastases and negative intraoperative frozen section.
abstract: BACKGROUND
  The purpose of this study was to investigate the outcomes of patients with papillary thyroid cancer (PTC) with lateral neck metastasis according to their permanent pathology report but negative frozen section findings who did not undergo lateral neck dissection.
  
  
  METHODS
  Between September 2009 and December 2011, 575 patients at Gangnam Severance Hospital (Seoul, Korea) underwent frozen section analysis for a suspicious lateral neck lymph node. In 16 patients, the intraoperative findings were negative, but lateral neck metastasis was diagnosed on the basis of permanent pathology findings. The outcomes of these patients who underwent thyroidectomy but not lateral neck dissection were retrospectively investigated.
  
  
  RESULTS
  One patient underwent a subsequent lateral neck dissection. After a mean (SD) follow-up period of 42.1 (8.5) months, none of the patients had distant metastasis.
  
  
  CONCLUSIONS
  Total thyroidectomy with subsequent lateral neck dissection is not necessary in patients with PTC who are diagnosed with lateral neck metastasis according to their permanent pathology report but have negative intraoperative frozen section findings.
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Seok-Mo
authors.initials: SM
authors.lastname: Kim
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Hyeung Kyoo
authors.initials: HK
authors.lastname: Kim
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Kuk-Jin
authors.initials: KJ
authors.lastname: Kim
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ho Jin
authors.initials: HJ
authors.lastname: Chang
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Bup-Woo
authors.initials: BW
authors.lastname: Kim
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Yong Sang
authors.initials: YS
authors.lastname: Lee
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Hang-Seok
authors.initials: HS
authors.lastname: Chang
authors.affiliation: Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Cheong Soo
authors.initials: CS
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D005629:Frozen Sections; D006801:Humans; D007430:Intraoperative Care; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery*; D013965:Thyroidectomy
keywords: cervical; frozen sections; lymph node; metastasis; papillary thyroid carcinoma