|
KMID : 0616619970030020645
|
|
Journal of Soonchunhyang Medical College
1997 Volume.3 No. 2 p.645 ~ p.660
|
|
|
Radiologic findings of breast cancer and fibroadenoma
|
|
|
|
|
Abstract
|
|
|
Purpose : To evaluate the utility of mammography and ultrasonography in study of morphologic differential diagnosis between malignant and benign mass.
Materials and Methods : Average age of patients with breast cancer was 48.4 year-old, and that of fibroadenoma was 29.4 year-old. The equipments used for examination were MF-159 high frequency mammography(Bennet Co.) and Acoustic image 5200S. We evaluated mammographic findings about breast parenchymal pattern, calcification, margin and size of the mass associated tumor nature, and ultrasonographic findings about shape, height and width, internal homogenicity and echo pattern, wall contour, boundary echo, and posterior shadow in breast mass. Thirty-seven of mammographic findings and 34 cases of ultrasonogreaphic findings in pathologically proven breast cancer and 34 case of mammographic findings and 71 cases of ultrasonographic findings in breast fibroadenoma were reviewed retrospectively.
Results : In mammographic study, the parenchymal patterns of breast cancer according to Wolfe classification were Nl(16.2%), Pl(24.3%), P2(37.8%), and DY(21.6%) and those in fibroadenoma were Nl(3.1%), Pl(11.7%), P2(35.2%), and DY(50%).
Mammographic findings about presence of calcification were as follows; only calcification(16.2%), only mass(51.3%), and mass with talcification(32.5%) in breast cancer, and only mass(91.2%), mass with calcification(8.8%) in fibroadenoma. The features of mass margins were classified
as ill-defined margin(45.9%), well-defined(5.4%, and well-defined with partial spiculation(48.6%) in breast cancer and ill-defined (20.5%), well -defi ned (73.5%), and well-defined with partial spiculation(5.8% in fibroadenoma. The mass were grouped by size; 1-2cm(37.8%), 2-4cm(45.9%), and 4-6cm(16.3% in breast cancer and 1-2cm(79.4%), 2-4cm(17.6%), and 4-6cm (3.0%) in fibroadenoma.
On ultrasonographic study, the shape of masses in breast cancer were lobulated(82.3%), oval(14.7%, and round(3.0%), and those in fibroadenoma were lobulated(14.0%), oval(57.7%, and round(18.3%). The cases that the height was longer than width were 32.3% in breast cancer and 0% in fibroadenoma. The findings about homogenecity and echo patterns were as follows; hypoechoic(52.9%) and mixed(47.1 %) in breast cancer and hypoechoic(2.8%), hypoechoic(63.4%), and mixed(33.8%) in fibroadenoma. The margin of masses were smooth in 85.9% of fibroadenoma, and irregular in 73.6% of breast cancer. The boundary echoes of masses and decreased posterior echo shadow were seen only in 61.8% and 55.9% of breast cancer, respectively.
Conclusion: The margin and calcifications are more clearly delineated/on mammography but breast cancer and fibroadenoma, both are more commonly developed in dense parenchymal pattern(P2+DY), and there findings are easily obscured in mammography. So ultrasonography is very useful in these masses evaluation, especially amoung young patients.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|