Objective:

To investigate ultrasound imaging appearance of breast ductal carcinoma

in situ

(DCIS) and to correlate with pathological characteristics

to improve the diagnostic level of ultrasonography.

Methods:

Ultrasonographic images of 108 patients with breast DCIS confirmed by pathology were retrospectively reviewed

according to the ultrasonic images

it can be divided into two types

architectural distortion mass (t

ypeⅠ) and nodules (typeⅡ). There are two categories which are DCIS and DCIS-MI according to histological classification

and pathological grading for low-grade

middle-grade and high-grade. Ultrasound image types were compared with pathology.

Results:

TypeⅠin 59 cases

its ultrasonographic performance mainly for isoecho (44 cases)

major diameter 20 mm (35 cases)

with microcalcification (23 cases)

ill-defined border (59 cases)

blood flow grade 2 (26 cases). TypeⅡin 49 cases

its main performance for hypoecho (39 cases)

major diameter＜20 mm (46 cases)

ill-defined border (39 cases)

with microcalcification (8 cases)

ratio of anteroposterior and transverse diameters (A/T) 1 (11 cases)

blood flow ＜ grade 2 (34 cases). Significant difference between two type lesions in echogenicity

border

diameter

microcalcification

A/T and blood flow were found. There were 24 cases (72.7%) and 53 cases (60.2%) were DCIS-MI and middle-high grade in typeⅠrespectively

The difference of pathological classification in the two types was statistical significant (

P

＜0.05).

Conclusion:

The ultrasonographic findings of DCIS are varied

familiar with these ultrasonographic features and clinicopathological features is useful accurate diagnosis.