DOI: 10.1148/radiol.2291010282
Solid Breast Masses Diagnosed as Fibroadenoma at Fine-Needle Aspiration Biopsy: Acceptable Rates of Growth at Long-term Follow-up1
Paula B. Gordon, MD,
Faith A. Gagnon, HBSc and
Leora Lanzkowsky, MD
1 From the Department of Radiology, University of British Columbia, 750 W Broadway, Suite 505, Vancouver, British Columbia, Canada V5Z 1H4. From the 2000 RSNA scientific assembly. Received January 8, 2001; revision requested February 15; final revision received February 17, 2003; accepted March 10. Address correspondence to P.B.G.

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Figure 1. Graph of percentage change in volume per month (as plotted against percentile) for masses in patients younger than 50 years shows that normal distribution of changes is centered around 0% and that the 95th percentile is a change in volume of approximately 15%.
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Figure 2. Graph of percentage change in volume per month (as plotted against percentile) for masses in patients 50 years or older shows that normal distribution of changes is centered around 0% and that the 90th percentile is a change in volume of approximately 13%.
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Figure 3. Graph of percentage change in volume per month (as plotted against percentile) for masses with a surgical diagnosis of fibroadenoma shows a somewhat right-skewed distribution and a 95th percentile of 40% change in volume.
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Copyright © 2003 by the Radiological Society of North America.