Metastases to the breast from extramammary malignancies-sonographic features

Ji Hye Lee, Sung Hun Kim, Bong Joo Kang, Eun Suk Cha, Hyun Suk Kim, Jae Jeong Choi

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Purpose: To evaluate the clinical and sonographic (US) features of metastatic tumors from extramammary malignancies to the breast. Methods: This study included 23 patients with pathologically proven metastases in the breast. Two radiologists retrospectively analyzed the images from US (n = 23), mammography (n = 11), and MRI (n = 5) examinations according to BIRADS. Results: Patients presented with a palpable mass or diffuse breast swelling (21/23) or were asymptomatic (2/23). Eighteen patients had solitary or multiple breast masses on US. The common US finding was an ovoid hypoechoic mass with a noncircumscribed margin. The final assessment categories were BIRADS 3 (probably benign finding) in 6 cases (25%) and BIRADS 4 (suspicious abnormality) in 18 cases (75%). In five patients, US displayed a diffuse infiltrative pattern without a focal lesion, which was categorized as BIRADS 4. Conclusions: Metastatic tumors in the breast have a wide range of sonographic appearances, with some resembling benign lesions. Any newly developed mass in a patient with a known history of extramammary malignancy, even with a probably benign US appearance, should undergo biopsy for pathologic confirmation.

Original languageEnglish
Pages (from-to)248-255
Number of pages8
JournalJournal of Clinical Ultrasound
Volume39
Issue number5
DOIs
StatePublished - Jun 2011

Keywords

  • Breast
  • Metastasis
  • Neoplasm
  • Ultrasonography

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