J Korean Radiol Soc.
1994 Jan;30(1):193-196.
Ultrasonographic Evaluation of Fibroadenoma in the Breast: Primary Signs of Mass
Abstract
- PURPOSE
To evaluate the ultrasonomammographic findings of breast fibroadenoma.
METHODS
AND MATERIALS:We evaluated the ultrasonographic findings of
histopathologically proved 135 fibroadenomas in 103 patients from January 1986 to
September 1990, retrospectively. The ultrasonographic examinations were performed
with a hand held linear array 5MHz transducer(Acuson 128(USA). Aloka 650,
280(Japan)). A sonopad was also used during the examinations.
RESULTS
The common ultrasonographic findings of fibroadenomas usually
showed smooth contour in 120 lesions(88.9% ), oval or round shape in 114 lesions(84.4%),
uniform homogeneous echogenecity in 106 lesions(78.5% ), intermediate
hypoechoic internal echo pattern in 105 lesions(77.8%), thin boundary echo in 117
lesions(86.7%), lateral shadowings in 97 lesions(72%), and posterior acoustic enhancement
in 56 lesions(41%). The longitudinal/transverse ratio of fibroadenoma
was revealed between 0.2 and 1.14 (mean 0.58) and usually under 1.0 (68.9%).
CONCLUSION
Finally, most of fibroadenomas are easily diagnosed by ultrasonography
but if differential diagnosis from malignant breast mass is difficult due
to atypical appearance, other combined modalities such as filmmammography, fine
needle aspiration biopsy and MRI are necessary.