Application value of color Doppler ultrasound in differential diagnosis of small breast mass

Objective To explore the ultrasonic appearance characteristics of small breast mass(diameter 2 cm),and to evaluate its clinical value in differential diagnosis of benign and malignant lesions.Methods Sixty-four cases of small breast mass were confirmed by surgery and pathology,27 of them were small breast cancer,and 37 were benign.The color Doppler ultrasonic appearance characteristics of all the patients were analyzed,their blood distribution characteristics were observed by CDFI,the blood flow parameter RI was detected by pulse wave Doppler.Results There was significant difference of shape,boundary,L/T ratio and microcalcification between malignant and benign lesions(P0.05).CDFI showed that blood classification≥level Ⅱ,RI 0.7 were in malignant lesions.The Doppler frequency spectrum analysis showed the peak value antelocation,no blood signal or reverse blood flow direction could be found in the end diastolic phase.The blood classification in level 0～Ⅰ,RI0.7 were found in benign lesions.Lymphadenectasis was found in 9 malignant lesions,and lymph node reactive hyperplasia was found in 2 benign lesions.Conclusion Color Doppler ultrasound has important value in differential diagnosis of benign and malignant small breast cancer.