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Case 8: New Focal Asymmetry at Lumpectomy Site

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Here's, uh, the next case. This is a, this is a tricky case. This was a, um,

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showing the left, this is actually an X C C L view, so an exaggerated CCC view,

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so you can see the outer breast well and, um, an MLO view.

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Um, so this patient has lots of, of surgical eclipsing from a prior lumpectomy,

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but she was noted to have a new, um,

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a new focal asymmetry at the lumpectomy site,

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and I think it's better seen on our spot views.

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So I'm just gonna go to the spot views here,

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but you can see there's a small mass or focal asymmetry here in the upper

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outer left breast. Very posterior depth. Um,

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this is new compared to prior exams.

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The patient had had this lumpectomy many years ago, uh,

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and so it was considered suspicious. It's a ti a very, very small finding,

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but regardless, we still recommended doing an ultrasound. Oh,

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lemme just go ahead and show the, or tomosynthesis lysis here.

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So here is on the, on that X C C L view,

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you can see this very small

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mass.

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And here's our M l O view,

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and we can see that mass on the m l o view also. And again,

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this was new compared to her prior exam, so was considered suspicious.

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We did an ultrasound. Um,

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in this one we do not able to find a sonographic correlate for that finding.

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So a new, a new finding at a lumpectomy site. Um, it's considered suspicious.

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We wanna make sure we biopsy.

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And so this is another great example of where we can use, um,

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tomosynthesis guided biopsy. So here is our, um,

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our scout image of our tomos and thesys guided biopsy. And this was challenging.

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It was like very posterior in the breast. Um,

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and it took a while, you know, to get, to find the area. But, um,

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we, um, we found this asymmetry here. Um,

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and so this was what targeted for biopsy. So we did the biopsy and like I have,

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um, repeatedly said, we placed a clip to, uh, to, uh,

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mark where it was that we took the biopsy from.

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So we did that post clip mammogram, and we saw the biopsy clip.

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But as we looked at the, the case after doing it,

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we saw that she still had that small mass in the upper outer,

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outer breast, further posterior from where we had biopsied. So we,

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we spoke with the patient and she actually was willing to just have another

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biopsy done that day. So she came back to the, um, biopsy table.

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We did another gout image here.

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And here's my, here's the biopsy clip from the first biopsy.

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And at the very, very back of the screen, we saw this other mass here.

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So it

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Was, it was, it was close. But if you remember from our first biopsy,

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this was at the very back of our, of our biopsy window.

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It's a small window that we're able to look at, um, where we had biopsied.

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Uh, so with this, this other area was not in our initial biopsy window.

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We then biopsied the second area. Um,

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on that same day we put another biopsy clip in,

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and that was in the correct area on her post clip mammogram.

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We got our pathology back a few days later.

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That first biopsy site was benign breast tissue with associated rare micro

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calcification. That second spot when we had her come back and, uh,

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biopsy the initially, uh,

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describes suspicious finding represented in invasive ductal carcinoma,

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moderately differentiated with mu mucinous features measuring five millimeters,

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and there was also associated microcalcifications. Um, so I think, um,

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there's just a great example of why we wanna make sure we're,

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we're looking at that post clip mammogram image and, um, making sure that the,

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the finding, um, whichever modality is being biopsied with, uh,

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really is, uh, matches up with our initial mammographic finding.

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Faculty

Emily B. Ambinder, MD

Assistant Professor - Breast Imaging Division

The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medicine

Tags

Ultrasound

Tomosynthesis

Neoplastic

Mammography

Breast