Breast lump near chest wall

I recently had a failed attempt at an MRI breast biopsy.  The needle went too deep and punctured my pectoralis muscle.  The procedure was aborted and a surgical biopsy has been scheduled.  A wire locater will still need to be placed prior to surgery, via MRI.  My question is, how will they be able to place the wire without complications if they could not biopsy due to location.  The radiologist's answer was because the needle is smaller.  Do you have a better answer?  
The doctor says the lump is either Fat Necrosis or cancer.  Question #2 Does my taking Tamoxifen for LCIS cause fat necrosis? I have no other trauma or surgery on this breast.  Could this be dead fat and this entire boondoggle has been for nothing?


This discussion is related to Nodule near chest wall.

[SueYoung55]

I'm on tamoxifen and have never heard of it causing necrosis.

Best wishes and B9 outcome for your testing!

[ninelives314]

A related discussion, Radiation "boost" was started.