Can you do a lateral, medial, superior and inferior biopsy on a capsule under local anesthesia?
It can be done, however, the implants will need to be removed before doing the biopsies for safety to the implants. If you want your implants, then they can be replaced. It will be easier on you to do this under general anesthesia or IV sedation. Not all surgeons will agree to do this under local anesthesia. A radiologist could possibly do a biopsy guided by Xray unless the capsules are very thin.