Journal of Ultrasound in Medicine, Vol 19, Issue 7 449-457, Copyright © 2000 by American Institute of Ultrasound in Medicine
Sonographic appearance of ductal carcinoma in situ diagnosed with ultrasonographically guided large core needle biopsy: correlation with mammographic and pathologic findings
J. M. Schoonjans and R. F. Brem
The Breast Imaging and Interventional Center, Russel H. Morgan Department of Radiology and Radiologic Science, Baltimore, Maryland, USA.
The purpose of this study was to evaluate sonographic features of ductal
carcinoma in situ diagnosed percutaneously at ultrasonographically guided
large core needle biopsy. Of 619 biopsies, 203 breast carcinomas were
diagnosed, of which nine were pure ductal carcinoma in situ. All ductal
carcinoma in situ lesions appeared sonographically as hypoechoic masses
without a pseudocapsule. Grade 1 lesions (n = 2; mean size, 9.5 mm), grade
2 lesions (n = 4; mean size, 18 mm) and grade 3 lesions (n = 3; mean size,
32 mm) had means of 0, 1, and 5 malignant sonographic features,
respectively. Ductal carcinoma in situ appeared mammographically as a mass,
with two of four grade 2 lesions and all grade 3 lesions demonstrating
suspicious microcalcifications. One grade 3 ductal carcinoma in situ was
spiculated. In conclusion, ductal carcinoma in situ lesions tended to show
more malignant mammographic and sonographic features as histologic grade
and size increased.