Right-Breast DCIS Found Alongside a Separate Malignant Phyllodes Tumor
This breast cancer diagnosis at a glance
- Subtype
- Invasive Ductal Carcinoma
- Biomarkers
- ER-positive, PR-positive, HER2-negative
- Sex
- female
- Treatment
- surgery and endocrine therapy
- Outcome
- Cancer-Free / NED
Treatment course, step by step
- Underwent right mastectomy as part of a bilateral mastectomy.
- Started endocrine therapy after discharge.
What happened, in summary
A 79-year-old woman was found to have tumors in both breasts. The right-breast lesion measured about 2.8 cm on MRI, and core biopsy showed ductal carcinoma in situ. A right sentinel lymph-node biopsy was negative, and staging scans found no distant disease.
She underwent bilateral mastectomy because of the synchronous tumors. The right-breast specimen confirmed low- to intermediate-grade ductal carcinoma in situ. The DCIS was strongly estrogen- and progesterone-receptor positive and HER2-negative. After discharge, she began endocrine therapy.
At the same operation, the separate large tumor in the left breast was confirmed as a malignant phyllodes tumor. At 18 months of follow-up, there were no concerning clinical or imaging changes, no enlarged axillary or supraclavicular lymph nodes, and no suspicious lung nodules. The right-sided DCIS therefore remained without documented recurrence at the latest follow-up.
Where this story comes from
This is a lay summary of an account first published by PMC / PubMed Central. Read the original in full
How we source and attribute stories Accuracy and limitations
Collections this story belongs to
- ER Positive Breast Cancer 242 stories
- Endocrine Therapy for Breast Cancer 36 stories
These are lay summaries of published cancer stories, for information only. No two cancers behave the same way, and nothing here predicts your own diagnosis or replaces advice from your oncology team. Read the full disclaimer