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Wk 3, Case 4 - Review

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The history here is 80-year-old woman

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status post bilateral mastectomy

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presented for implant assessment.

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So this is one case, uh,

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covers, uh, many illustrations.

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So this, we're starting at the top.

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These are the, of course, non-fat sat.

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You see all of her fat.

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And as we're coming down, all of a

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sudden we realize, wait a minute, not

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only do I not see one normal breast,

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uh, I don't even see two normal breasts

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because it is obvious that the right

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breast doesn't have the usual parenchyma.

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There's an odd, um, there's skin thickening,

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and then there's an odd band of hypointensity.

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And then the pack is more pointed than usual.

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There's also this oddity

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of these swirls of vessels.

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And, of course, here's some

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overt post-surgical change.

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And so, of course, by now, and

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then, as we scroll down, you can

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see by now, you're reconciling the

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status post bilateral mastectomies.

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Quote implant, um, uh, integrity indications

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of this MR with the fact that, hey, wait a

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minute, one breast doesn't have an implant.

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That is an autologous, um, reconstruction.

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So that's a, that's a flap and

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the other and the left breast does

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in fact have a silicone implant.

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So, um, anyway, so these are the

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hallmarks actually of a TRAM.

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Um, and, um, just wanted to go through

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that very quickly, and then we'll, we'll

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do a bit more on the silicone as well.

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But this is the, so what happens is the normal

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breast has been removed with the exception.

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And this is important to know, in terms

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of where you might look for recurrence.

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This is actually endogenous

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um, tissue that remains,

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uh, underneath the skin.

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Um, this line is the pulled-through flap, in

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this case, a TRAM flap coming from the abdomen.

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So all of this fat is abdominal fat, whereas

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this fat is the, is the, um, just barely

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beneath the skin, but could theoretically

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still contain some, um, some breast,

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um, breast, breast, epithelial rest.

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So just a little hint there, um, and,

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um, and then this, these structures

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here reflect the actual vascular

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pedicle of the pulled-through flap.

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And then this is, um, this is, um, the,

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atrophied rectus abdominal muscle that.

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That's come to come up with a

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pull through and all of that.

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So that's just a very, very typical anatomy.

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I'm not going to belabor that

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on this one because actually

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the next case is a TRAM as well.

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Just FYI.

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Okay, so we have that information and

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so again, the value, the value, at least

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to me of anatomic assessment, we already

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know that there is no intrinsic amount of.

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Fibroglandular tissue, so

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you get to say not applicable.

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You also know that there's not going

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to be a background enhancement.

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So you get to say not applicable.

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And so also that sequence kind of helps

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you with kinds of kind of helps you with

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that determination and then we're going

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to move on from here to, um, one of the

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things that can be the silicone implant.

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Admittedly, this is a T2, but you can use a

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T2 sequence to at least look at the overall

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anatomy and appearance of the implant.

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So here's that we're starting up

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high coming down low the left.

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breast has been, um, uh, removed as

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well, but it has been reconstructed.

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They were not done at the same time, obviously

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they were done in tandem and the left breast

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was reconstructed with a silicone implant.

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We know it's a silicone implant.

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We wouldn't know so much from this T2 because

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of course T2, uh, salines are bright, but there

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is no valve as you scroll through all of it.

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There's no valve.

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And, um, you can.

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Absolutely.

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Thereby exclude from being a silicone

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saline implant, because there's no,

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there's no apparatus to reinflate it.

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And then remember on the silicone

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implants, we want to always do something.

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That is a silicone only sequence.

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That is silicone hyperintense

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and water hypointense.

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So that, like, teach regular to is not

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going to be that because a regular to is.

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Of course, water bright, it doesn't

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help so much silicone versus saline or

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silicone versus any fluid structure.

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But this is a very nice example of a completely

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intact, smoothly contoured silicone implant.

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And these are the radial

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folds that occur at the perimeter.

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Uh, there's no silicone in the middle of them.

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These are not anything with the keyhole or the

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or the teardrop or the new

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signs and so that's it.

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So the only 2 points that I was going

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to make with this case to reiterate them

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again is what a silicone implant looks

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like when it has not failed and what the

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autologous flaps, notably a TRAM flap, which

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at least in the States is far more common.

Report

HISTORY: 80 year old woman status post bilateral mastectomies presented for implant assessment

Summary of prior imaging:

Mammography: None post op
Ultrasound: None post op
Breast MRI: None

FINDINGS

Quality control issues: ☒None ☐Poor/lack contrast bolus ☐Poor fat suppression
☐Susceptibility ☐Movement ☐Other

Background Parenchymal Enhancement: Not applicable
Amount of Fibroglandular Tissue: Not applicable

LEFT BREAST

Narrative
Status post left mastectomy with retropectoral silicone implant reconstruction. No suspicious enhancing masses or areas of nonmass enhancement. No axillary or internal mammary adenopathy is seen. No abnormal skin or pectoralis muscle enhancement. The left breast implant is intact.

Left breast lesion 1
Lesion type: Choose an item.

Longest measurement cm. Choose an item Quadrant. Choose an item. Radian. dist from nipple cm from the nipple

BI-RADS: 1: Negative: Routine breast MRI screening if cumulative lifetime risk =>20%

Associated findings LEFT: ☒NONE, ☐Nipple retraction, ☐Nipple involvement, ☐Skin retraction, ☐Skin thickening, ☐Skin invasion-direct, ☐Skin invasion-inflammatory, ☐Pectoral muscle invasion, ☐Chest wall invasion, ☐ Architectural distortion

Non-enhancing findings LEFT: ☒NONE, ☐High ductal signal pre contrast T1, ☐Cyst(s), ☐Hematoma/seroma, ☐Post therapy skin/trabecular thickening, ☐Non-enhancing mass, ☐Architectural distortion, ☒Signal void in the skin

Fat containing lesions LEFT: ☒NONE, ☐Fat necrosis, ☐Hamartoma, ☐Post-operative seroma/hematoma with fat

Lymph nodes LEFT: ☒Normal axillary, ☐Signal void from clips, ☐Abnormal axillary, ☐ Abnormal internal mammary

RIGHT BREAST

Narrative
Status post right mastectomy with TRAM flap reconstruction. No suspicious enhancing masses or areas of nonmass enhancement. No axillary or internal mammary adenopathy is seen. No abnormal skin or pectoralis muscle enhancement.

Right breast lesion 1
Lesion type: Choose an item.
Longest measurement cm. Choose an item Quadrant. Choose an item. Radian. dist from nipple cm from the nipple

BI-RADS: 1: Negative: Routine breast MRI screening if cumulative lifetime risk =>20%

Associated findings RIGHT: ☒NONE, ☐Nipple retraction, ☐Nipple involvement, ☐Skin retraction, ☐Skin thickening, ☐Skin invasion-direct, ☐Skin invasion-inflammatory, ☐Pectoral muscle invasion, ☐Chest wall invasion, ☐ Architectural distortion

Non-enhancing findings RIGHT: ☒NONE, ☐High ductal signal pre contrast T1, ☐Cyst(s), ☐Hematoma/seroma, ☐Post therapy skin/trabecular thickening, ☐Non-enhancing mass, ☐Architectural distortion, ☒Signal void from clips

Fat containing lesions RIGHT: ☒NONE, ☐Fat necrosis, ☐Hamartoma, ☐Post-operative seroma/hematoma with fat

Lymph nodes RIGHT: ☒Normal axillary, ☐Abnormal axillary, ☐ Abnormal internal mammary

Extramammary findings: None

LEFT BI-RADS: 2: Negative
RIGHT BI-RADS: 2: Negative

RECOMMENDATIONS: Clinical follow up
SUMMARY: Negative postoperative study

Case Discussion

Faculty

Petra J Lewis, MBBS

Professor of Radiology and OBGYN

Dartmouth-Hitchcock Medical Center & Geisel School of Medicine at Dartmouth

Sheryl G. Jordan, MD

Professor, Department of Radiology

University of North Carolina School of Medicine

Ryan W. Woods, MD, MPH

Assistant Professor of Radiology

University of Wisconsin School of Medicine and Public Health

Tags

Women's Health

MRI

Breast

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