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A 27-year-old female asked:

How often do radiologists miss the mass and get other tissue during an ultrasound guided biopsy for a small(7mm) breast mass? is this common?

2 doctor answers4 doctors weighed in
Dr. Stephen Saponaro
Specializes in Radiology
No: The diagnostic accuracy of ultrasound guided breast biopsy is 94.7%. Here is a reference: http://www.Ncbi.Nlm.Nih.Gov/pubmed/21215163.
Dr. Michael Gabor
Diagnostic Radiology 34 years experience
Not often: Ultrasound guided biopsy is very accurate, at least 95%. And although 7mm sounds very small in real terms, in the world of ultrasound guided biopsy it is a decent sized target.
Last updated May 26, 2016

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