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Updated: Aug 15, 2026

Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Palpable right breast mass in a pregnant woman
Matthew S Katz1, Lidia Schapira, Mukesh G Harisinghani
1Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA. mskatz@partners.org
Background:
A 29-year-old female presented with a palpable right breast mass at a 12-week prenatal visit. She had no family history of breast or ovarian cancer. Ultrasound revealed a 3 cm lobulated mass, which was confirmed to be malignant by a core biopsy. Postmastectomy pathology at 15 weeks' gestation demonstrated this mass to be a stage T2N0M0 high-grade invasive ductal carcinoma with 0/20 axillary nodes involved. A staging CT scan postpartum showed an enlarged right internal mammary lymph node, confirmed by MRI as suspicious for malignancy.
Investigations:
Physical examination, breast ultrasound, core biopsy, mastectomy, CT scan, MRI.
Diagnosis:
Pregnancy-associated breast carcinoma.
Management:
Mastectomy, chemotherapy and radiotherapy.
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