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FOR PATIENTS · SOURCE READING

Permanent breast seed implant (PBSI)

Source: Radiation for Breast Cancer, National Cancer Institute.

Source updated: Not stated in this source · Captured 2026-09-09.

Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.

NCI patient treatment article for this disease Exact source article; not a clinically reviewed indication or current-standard recommendation.

Context: Radiation for Breast Cancer / Types of radiation therapy for breast cancer / Brachytherapy for breast cancer

PBSI involves placing permanent radioactive seeds into the breast tissue around the area where the cancer was removed. The seeds emit radiation at a low dose. Although the seeds remain in the body, they lose their radioactivity over time and do not need to be removed. This is a one-time procedure that usually does not require a hospital stay.

Preserved source evidence · Independent clinical review pending · Not medical advice