Objective:

To analyze the clinical characteristics and ultrasonic manifestations of breast mucinous carcinoma and explore the diagnostic value of conventional ultrasound combined with ultrasonic el

astography in breast mucinous carcinoma.

Methods:

The retrospective study analyzed 63 patients (63 masses) with mucinous breast carcinoma confirmed by pathological examination in Nanjing Drum Tower Hospital

The Affiliated Hospital of Nanjing University Medical School from 2014 to 2022. 50 patients (50 masses) with fibroadenoma confirmed by pathological examination during the same period were randomly selected as the control group. All 113 masses underwent conventional breast ultrasonography and strain elastography to observe and record the mass size

shape

boundary

elasticity score

etc. The masses were also classified according to the Breast Imaging Reporting and Data System (BI-RADS) classification criteria. Among them

78 masses were quantitatively analyzed using shear wave elastography. The clinical and ultrasonic characteristics of the two groups were compared.

Results:

The sensitivity (85.71%

vs

65.07%)

specificity (94.00%

vs

88.00%)

positive predictive value (94.73%

vs

87.23%)

negative predictive value (83.93%

vs

66.67%) and accuracy (89.38%

vs

75.22%) of conventional ultrasound combined with strain elastography were higher than those of conventional ultrasound alone. The diagnostic consistency Kappa index of conventional ultrasonography combined with strain elastography was higher than that of conventional ultrasound (0.787

vs

0.514). Shear wave elastography showed that the maximum

minimum

and average shear wave velocities of the two groups were (7.26±2.41) m/s

vs

(3.77±1.79) m/s

(3.16±1.09) m/s

vs

(2.23±0.79) m/s

(4.82±1.39) m/s

vs

(2.91±1.02) m/s

respectively

with statistically significant differences (

P

＜0.05).

Conclusion:

Conventional ultrasound combined with elastography has certain clinical value in the diagnosis of mucinous breast carcinoma.