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October 1996

Usefulness of Ultrasound-Guided, Fine-needle Aspiration Biopsy for Palpable Breast Tumors

Arch Surg. 1996;131(10):1095-1098. doi:10.1001/archsurg.1996.01430220089020

Objective:  To investigate whether ultrasound (US) guidance improves the sensitivity of fine-needle aspiration biopsy (FNAB) in patients with palpable breast tumors.

Design:  A retrospective study.

Setting:  A university hospital.

Patients:  A total of 107 patients with breast tumors (114 lesions) underwent US-guided FNAB and 138 patients (143 lesions) underwent FNAB guided by palpation (standard FNAB).

Main Outcome Measures:  The diagnoses obtained by FNAB were compared with the surgical findings and the diagnostic value of US-guided FNAB was evaluated.

Results:  The sensitivity of US-guided FNAB was 89.3%, the specificity was 82.9%, and the accuracy was 86.9%. In contrast, the sensitivity of standard FNAB was 61.1%, the specificity was 73.3%, and the accuracy was 65.0%. For breast tumors 2.0 cm or less in diameter, the sensitivity and accuracy of US-guided FNAB were significantly higher than those of standard FNAB.

Conclusion:  Ultrasound-guided FNAB can improve the preoperative diagnosis of breast cancer, especially in patients with tumors that are 2 cm or less in diameter.Arch Surg. 1996;131:1095-1098