Ultrasonic findings of Boundary zone in Breast lesions are important when judging tumors to be benign or malignant, and histological classification of breast tumors.
Depending on the method of classification, differences in results obtained may be expected. Boundary Zone findings which reflected histological findings were considered.
The ultrasonic findings of 177 cases of breast cancer and 37 cases of benign lesions from a total of 214 cases of breast lesions, regarding the mass image-forming types from November 2008 to October 2009 at Kotoni Clinic, compared boundary zone with histological finding.
All 20 cases of line boundary zone were capsular tumors by histological findings.
Of 11 cases of ill-defined with halo boundary zone, 8 cases were scirrhous like invasion tumors by histological finding
In conclusion it was found that irregular boundary zone findings alone, and halo boundary zone alone, were more useful than including defined boundary zone findings when judging breast tumors, and line boundary zone reflected histological findings.
