Associated Features on MRI
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So I want to talk about some associated
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features that we can see on MRI, and these
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include things like nipple retraction, nipple
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inversion, skin retraction, and skin thickening.
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We may see skin invasion, where the breast
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tumor directly invades the skin, or there's
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inflammatory breast cancer where there's
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actually metastatic disease within the skin.
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We can see axillary adenopathy, pectoralis
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muscle invasion, chest wall invasion,
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and associated architectural distortion.
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I wanted to show you a few of these features
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and then we'll go over a case that has a
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lot of these features associated with it.
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So this is a patient
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who has inflammatory breast cancer and
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her breast skin is diffusely thick, and
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her nipple is actually retracted here.
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So the nipple, the shape of the
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front of the breast is a little bit
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deformed and her nipple is pulled in.
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This is a patient who has a breast cancer
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that's involving her pectoralis directly, almost
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extending to the back of the pectoralis muscle.
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So pectoralis involvement.
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And here's a patient who
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has a large breast cancer.
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It actually extends from the skin to the
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pectoralis muscle, but it doesn't stop there.
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It goes to the chest wall.
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So that yellow arrow is
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indicating chest wall enhancement.
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You can see that that's pretty diffuse.
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So sometimes we'll have a request to look at
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breast MRI when we have kind of a larger mass
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or a fixed mass, it's already been biopsied,
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we know it's a breast cancer, but we're trying
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to figure out what structures are involved
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and how can we help the surgery team and
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treatment team better plan for treatment.
Lisa Ann Mullen, MD
Assistant Professor; Breast Imaging Fellowship Director
Johns Hopkins Medicine
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