A case of benign schwannoma of the breast: mammographic, ultrasonographic and color Doppler ultrasonographic findings.

摘要

A 61-year-old asymptomatic postmenopausal woman presented to the radiology department for a screening mammogram. The patient's medical history was noncontributory and her physical examination was within normal limits. Her prior mammogram, 3 years earlier, was normal. The mammogram showed that both breasts were almost entirely composed of fat (Breast Imaging Reporting and Data System [BIRADS] category 1: almost entirely fat breast composition). There was 20 x 10 mm, lobular, circumscribed, high-density mass without microcalcification on one-third posterior of the upper-lower outer quadrant of her left breast (Fig. 1). On ultrasonography, the lesion was well-circumscribed, parallel in orientation, hypoechoic, slightly inhomo-geneous, and solid with moderate acoustic enhancement (Fig. 2). On color Doppler sonography, the mass was hypovascular (Fig. 3).