Abstract：ObjectiveTo explore the ultrasonographic features and causes of misdiagnosis of breast carcinoma with medullary features． Methods The sonographic appearances and pathological features of breast carcinomas with medullary features in 24 patients（a total of 24 lesions）diagnosed by operation and pathology were analyzed retrospectively. Ultrasonic appearances such as lump quantity， size， boundary， shape， internal echo， rear echo， lump internal microcalcification with or without， lump internal blood stream situation， oxter lymph nodes infiltration information were analyzed. ResultsAmong the 24 cases of breast carcinomas with medullary features， 18 cases preoperative ultrasonic diagnosis were accorded with pathologic diagnosis，ultrasonic diagnosis accurate rate was 75.0％（18/24）. Four cases graded BI-RADS 3 by preoperative ultrasound were misdiagnosed as fibroadenoma， 2 cases graded BI-RADS 5 by preoperative ultrasound were misdiagnosed as infiltration ductal carcinoma. ConclusionsUltrasonography has relatively higher diagnostic accuracy in breast carcinoma with medullary features. Analyzing the causes of misdiagnosis may further improve the recognition of ultrasonographic characteristic in breast carcinoma with medullary features, avoiding misdiagnosis.
