Do Fat Transfers to the Breasts Affect Mammograms?
If you’ve had or are considering a fat transfer to the breasts—whether for cosmetic enhancement or part of breast reconstruction—you may be wondering:
Will it change what shows up on my mammogram?
This is a great question, and the short answer is:
Yes, fat grafting can cause visible changes on imaging—but that doesn’t mean it’s harmful or confusing to your care team.
What Changes Can Appear on a Mammogram?
After fat transfer, some patients develop oil cysts or fat necrosis in the breast tissue. These are benign, expected changes that can sometimes show up on:
- Mammograms
- Ultrasounds
- MRIs
Not everyone develops these changes, but they’re not uncommon, and they’re generally nothing to worry about .
How Do Radiologists Handle This?
As the popularity of fat transfer to the breasts has grown—for both augmentation and reconstruction—radiologists have become very familiar with the imaging patterns that follow these procedures.
Most radiologists can confidently distinguish between:
- Benign oil cysts or fat necrosis
- Suspicious findings like cancer
However, in some cases, additional imaging may be recommended—such as digital mammography, ultrasound, or MRI—to confirm that any abnormality is benign. Occasionally, a biopsy may be performed just to be certain .
Should I Get a Mammogram Before Fat Transfer?
If you’re 40 or older (or nearing that age), you’re already advised to begin regular mammograms. For those in this category—or anyone with a family history of breast cancer—it’s a great idea to:
- Get a baseline mammogram before your procedure, so future imaging has a comparison point.
- Continue annual screenings afterward as recommended.
This helps radiologists confidently monitor for any new or changing findings over time .
The Bottom Line
Yes, fat grafting can cause visible changes on mammograms, but they’re usually benign and well-understood by radiologists. Getting a baseline mammogram if you’re age-appropriate or high-risk is a smart move before surgery.
If you’re considering fat transfer to the breasts and have questions about imaging or safety, I’m happy to walk you through what to expect before, during, and after your procedure.
—
Dr. Victoria Aimé | Plastic Surgeon | Metropolitan Plastic Surgery, Scottsdale, AZ
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