UCLA

Abstract: Purpose of Review: The purpose of this paper is to review a novel technique for stereotactic-guided breast biopsies utilizing the lateral arm approach. Recent Findings: Successful stereotactic-guided biopsies require careful consideration of lesion location and patient anatomy. Cases that cannot be safely performed are often referred for surgical biopsy, which can increase patient anxiety and delay diagnosis. The lateral arm approach provides an alternative needle approach for biopsy that can mitigate some of the most common exclusion criteria for standard techniques. Although there are many benefits to the lateral arm approach, it has not yet been widely adopted. This article reviews the lateral arm approach, including patient selection, procedural technique, advantages, and disadvantages. Case examples utilizing the technique will also be discussed to illustrate our institutional experience (including procedural tips) and how the lateral arm approach can be integrated into breast imaging practice. Summary: The lateral arm approach can expand the patient population that can undergo stereotactic-guided breast biopsy, which may obviate the need for surgical biopsy or short-term follow-up. The technique also allows for a creative approach to biopsy in challenging cases. Proficiency with the lateral arm approach can expand a breast imager’s interventional skills, improve patient care, and allow for more expedient diagnosis of suspicious breast findings.