J Korean Soc Med Ultrasound.  2000 Jun;19(2):93-98.

Ductal Carcinoma in Situ: US Finding and Its Usefulness

• Kim KT
• Hwang MS
• Lee JK

Abstract

PURPOSE: To evaluate the ultrasonographic (US) findings of ductal carcinoma in situ (DCIS) of the breast and its usefulness.
MATERIALS AND METHODS
US and mammographic findings of 20 cases of pathologically proven DCIS were retrospectively evaluated. The presence of nodule, microcalcification and ductal dilatation were examined in US and compared with mammograms.
RESULTS
In US, 17 (85%) of 20 cases showed single (n=14, 82%) or multiple nodules (n=3, 18%). Five of the 17 cases showed echogenic dots suggesting microcalcifications within the mass. Three cases missed on US showed microcalcification only on mammogram. Other findings were heterogeneous internal echo (n=16, 94%), irregular mass margin (n=14, 82%), and ductal dilatation (n=4, 24%). Mammogram showed abnormal findings in 15 cases (75%); nodule without microcalcification (n=7, 47%), microcalcifications only (n=5, 33%) and nodules with microcalcifications (n=3, 20%). Five cases missed on mammography showed single (n=3) or multiple nodules (n=2) without microcalcification on US.
CONCLUSION
Ultrasongram does not show specific findings of DCIS, but it is superior to mammogram in the detection and characterization of DCIS manifested as only nodules without microcalcification.

MeSH Terms

Breast
Breast Neoplasms
Carcinoma, Ductal*
Carcinoma, Intraductal, Noninfiltrating*
Dilatation
Mammography
Retrospective Studies