Abstract
We describe here the sonographic manifestation of the soft tissue neoplasm, dermatofibrosarcoma protuberans, which rarely occurs in the breast. Four patients had clinical features of breast mass. Sonography was performed with a high-frequency transducer (7.5-12.0MHz). Distribution of blood flow inside the tumor was studied by color Doppler. All the cases of dermatofibrosarcoma protuberans observed on the sonograms were hypoechoic, with a heterogeneous internal echo. An oval-shaped and circumscribed margin was seen in two of the tumors, whereas a lobulated shape and slightly obscured margin was noted in the other two tumors. On color Doppler, arterial blood flow signals were noted inside the tumor in three of the cases, and no significant flow signal was noticed in the remaining case. In three of the cases, the masses were in the dermal region, without infiltrating the mammary tissue, and they were diagnosed as a dermal mass. However, in the remaining case, the mass infiltrated the mammary tissue and was thus misdiagnosed as a breast mass.
Published Version
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