(1) Additionally, initial planning and triangulation of the mammographic abnormality
, particularly in regards to accurate depth measurements, of a 3D finding on the traditional 2D FFDM may be time consuming and allows room for error.
Evaluation of a palpable lump or mammographic abnormality
reported mammographically detected abnormality in 78% of cases , but another study  reported that 69% of patients with PASH presented no mammographic abnormality
. However, that series included cases in which PASH was incidentally noted histologically.
Most commonly observed mammographic abnormality
was circumscribed high density spiculated mass with axillary lymphadenopathy in 23 (40.4%) patients followed by speculated mass alone in 15 (26.3%) patients, multicentric masses with axillary lymphadenopathy in 12 (21.1%) patients and speculated mass with microcalcification in 7 (12.3%) patients.
The ultrasonographer now knows to scan specifically in the lower, outer, right breast approximately the same distance from the nipple to try to find a sonographic correlate to the mammographic abnormality
. The correlate should also match in size and shape.
In two patients referred for MRI because of an abnormal mammogram, the original mammographic abnormality
was benign; however, MRI demonstrated in each case an unsuspected malignancy in the contralateral breast.
She reported on 4,460 women aged 18-49 years in the Mayo Benign Breast Disease Cohort who underwent excisional breast biopsy for a palpable or mammographic abnormality
that proved to be benign breast disease.
Many sonographers are not mammographers, and they have a difficult time determining the location of a specific mammographic abnormality
and correlating mammographic findings with sonographic findings.
The diagnostic ultrasound exam (Figures 9,10) demonstrates an irregularly-shaped, hypoechoic, non-circumscribed mass with angulated margins, an echogenic halo, and posterior shadowing located 3 cm from the nipple at the 9:00 axis, which corresponds to the mammographic abnormality
Since most DCIS lesions encountered today present as a nonpalpable, grossly unapparent mammographic abnormality
, accurate determination of the size or extent of the lesion is often problematic clinically.
At that point, breast ultrasound could be used to determine if a mammographic abnormality
or clinically palpable mass was cystic or solid.
Breast MRI may be helpful in certain situations in which there is an equivocal mammographic abnormality
and for 3-dimensional localization of a lesion seen on one view only.