Background and Objective: After mammogram was
introduced, non-palpable breast masses were found. introduced, non-palpable breast masses were found.
Therefore, ultrasound-guided core-needle biopsy was
also introduced to identify and get sample tissue,
instead of open-excisional biopsy. This study aimed
to evaluate the accuracy of ultrasound-guided
core-needle biopsy compared to open-excisional
biopsy.
Methods: This was a retrospective descriptive study
done in Maharat Nakhonratchasima hostpital
breast-masses pati ents, after havi ng both
ultrasound-guided core-needle biopsy and openexcisional
biopsy. Pathological examination results
from both methods were compared.
Results: From January, 2012 to July, 2015, there were
91 patients who had been biopsied by both methods.
Most abnormal pathologi cal results from
ultrasound-guided core-needle biopsy were benign in
68.13%. Cancer-related results were found in 21.98%.
81 patients had results that were in consistent with
open-excisional biopsy.
Conclusion: In non-palpable breast masses, pathological
examination results from ultrasound-guided
core-needle biopsy had high accuracy rate of
89.1%(95%CI, 82.58-95.44%), when compared to
open-excisional biopsy.