Ultrasonographic diagnosis of dermatofibrosarcoma protuberans / 中国医学影像技术

ABSTRACT

Objective To explore the ultrasonographic appearance of dermatofibrosarcoma protuberans. Methods Clinical data, sonographic features and color Doppler flow imaging characteristics of 12 patients surgically and pathologically confirmed dermatofibrosarcoma protuberans were retrospectively analyzed.Results Single mass was detected in 11 patients (11/12, 91.67%) with the diameter ranged 0.9-8.0 cm. The tumors distributed in the trunk (8/12, 66.67%), proximal limbs (2/12, 16.67%) or face and neck (2/12, 16.67%). Most of the tumors (10/12, 83.33%) developed from skin and subcutaneous fat layer of the trunk and limbs and were hypoechoic and heterogeneous (11/12, 91.67%), some (8/12,66.67%) with distinct boundary and regular shape without liquification, calcification nor regional lymph node metastasis. Affluent color Doppler flow signals of tumor were found in 11 patients (91.67%).Conclusion Ultrasonographic characteristics of dermatofibrosarcoma protuberans include distinct boundary, regular shape, heterogeneous hypoechogenicity and rich color Doppler flow signals without regional lymph node metastasis.