title: Cytohistologic correlation of thyroid nodules.
abstract: BACKGROUND
  Fine-needle aspiration (FNA) is widely used as a diagnostic tool to assess thyroid nodules. This study correlates FNA cytology results with surgical pathologic findings.
  
  
  METHODS
  All thyroidectomies performed between 1994 and 2004 were reviewed, identifying 242 patients. Data were obtained for FNA diagnosis, demographics, findings on ultrasound, and histologic findings.
  
  
  RESULTS
  Among 89 patients with a carcinoma on FNA, 89% of cases were verified on final histopathology. Of 78 patients with "follicular lesion" on FNA, only 36% of cases were verified to be malignant at surgery. Only 13% of the 75 cases diagnosed as benign, mostly colloid nodules, on FNA were found to have a carcinoma on histopathology.
  
  
  CONCLUSIONS
  A cytologic diagnosis of papillary carcinoma has a highly predictive of thyroid cancer. When dealing with follicular lesions the predictive value of FNA drops considerably. However, we found a 13% false positive result to occur in FNA declared benign lesions.
authors.affiliation: Department of Surgery, Hadassah Hebrew University Medical Center, Mount Scopus 24035 Jerusalem, Israel. hmazeh@hadassah.org.il
authors.forename: Haggi
authors.initials: H
authors.lastname: Mazeh
authors.forename: Nahum
authors.initials: N
authors.lastname: Beglaibter
authors.forename: Diana
authors.initials: D
authors.lastname: Prus
authors.forename: Ilana
authors.initials: I
authors.lastname: Ariel
authors.forename: Herbert R
authors.initials: HR
authors.lastname: Freund
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044963:Biopsy, Fine-Needle; D002277:Carcinoma / Q000473:pathology* / Q000601:surgery; D005260:Female; D006785:Hospitals, University; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D013503:Surgery Department, Hospital; D016606:Thyroid Nodule / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy