title: [Ultrasound-guided biopsy of non-palpable breast lesions: correlation with the results of fine-needle aspiration biopsy].
abstract: OBJECTIVE
  The purpose of this study was the clinical evaluation of ultrasound-guided biopsy in comparison with ultrasound-guided fine-needle aspiration biopsy of identical, non-palpable breast lesions.
  
  
  METHODS
  From August 1997 until July 1998, 73 ultrasound-guided biopsies were performed in 66 patients with non-palpable lesions of the breast. In 18 patients (age 33-77 years) with 20 non-palpable lesions, fine-needle aspiration biopsy (20-G needle) and biopsy (18-G biopsy needle) were performed on a single occasion. This was the patient selection of our retrospective study.
  
  
  RESULTS
  One malignant neoplasm was found among the 20 biopsied lesions, while the remaining 19 lesions were of a benign nature. In 20% of the cases, the material obtained by fine-needle biopsy was not sufficient for a cytologic diagnosis, while biopsy allowed a diagnosis in 19/20 cases. No complications were observed.
  
  
  CONCLUSIONS
  Ultrasound-guided biopsy using an 18-G needle is a suitable method for the evaluation of non-palpable lesions that are only visible on ultrasound. It represents an attractive alternative to fine-needle aspiration in the absence of experienced cytologic diagnosticians.
authors.affiliation: Institut für Diagnostische Radiologie, Universitätsspital Zürich, Schweiz.
authors.forename: P R
authors.initials: PR
authors.lastname: Hilfiker
authors.forename: R
authors.initials: R
authors.lastname: Caduff
authors.forename: J
authors.initials: J
authors.lastname: Pok-Lundquist
authors.forename: E
authors.initials: E
authors.lastname: Garzoli
authors.forename: B
authors.initials: B
authors.lastname: Marincek
authors.forename: R A
authors.initials: RA
authors.lastname: Kubik-Huch
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy / Q000379:methods*; D001707:Biopsy, Needle; D001940:Breast / Q000473:pathology*; D001941:Breast Diseases / Q000175:diagnosis / Q000473:pathology; D001943:Breast Neoplasms / Q000175:diagnosis / Q000473:pathology*; D018270:Carcinoma, Ductal, Breast / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D018226:Fibroadenoma / Q000175:diagnosis / Q000473:pathology; D005348:Fibrocystic Breast Disease / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D016217:Ultrasonography, Mammary
vernacular_title: Ultraschallgesteuerte Schneidbiopsien nicht palpabler Mammaläsionen: Korrelation mit den Ergebnissen der ultraschallgesteuerten Feinnadelpunktion.