Editing Breast biopsy techniques (section)

== Stereotactic biopsy ==

* False negative rate of 11.8-28.6%
* Risk of bleeding, haematoma or infection is less than 1%
* Indications
** BI-RADS 4 + 5 require biopsy, BI-RADS 3 is at clinician/patient discretion (according to Kat mostly recommend follow-up with yearly mammogram)
** New suspicious microcalcifications, developing asymmetries, or architectural distortions
** Nonpalpable asymmetry, focal asymmetry, or solid mass on mammogram not seen on USS
** Mammographic lesions corresponding to suspicious areas of enhancement on MRI
* Contraindications
** Patient unable to lie prone or co-operate
** Weight
** Lesion location near nipple, too superficial to skin, or too posterior to chest wall
** Lesion mammographically occult
** Patient has severe kyphosis or movement disorders
** Lack of breast tissue thickness for adequate compression
** Pregnancy
* Pathologic correlation
** Need concordance with prior imaging reports
** X-ray specimens to see whether recorded calcifications were gathered - if not, quality of biopsy is suspect
* Target of biopsy
** Aim for five flecks of calcification, or flecks in three separate cores

[[Category:Breast]]