Figure 6. Sonogram obtained in a 45-year-old woman who reported having a small lump shows an isoechoic structure (arrows) completely surrounded by hyperechoic tissue; hence the term "trapped lobule," or type 6 tissue pattern.
Figure 6. Sonogram obtained in a 45-year-old woman who reported having a small lump shows an isoechoic structure (arrows) completely surrounded by hyperechoic tissue; hence the term "trapped lobule," or type 6 tissue pattern.