MammoSite 5 Day Targeted Radiation Therapy

MammoSite 5-day Targeted Radiation Therapy uses a small, soft balloon attached to a thin catheter(tube). This balloon is placed inside the lumpectomy cavity. To deliver the required therapy, a tiny source of radiation, called a ‘seed’, is placed within the MammoSite balloon by a computer-controlled machine.

During 10 treatments over 5 days, this ‘seed’ is placed in the balloon and therapeutic radiation is delivered to the area surrounding the lumpectomy cavity. After each treatment, the ‘seed’; is removed, but the balloon catheter remains for the next treatment.

After 5 days of treatment, the balloon catheter is removed, and the area is closed with a small bandage. Most women say that they feel little or no discomfort either during the treatment or when the device is removed.

Targeted Radiation Therapy uses a higher dose of radiation limited to the site surrounding the cancer, therefore, therapy can be completed in a shorter period of time – typically 5 days. Conventional external-beam radiation therapy takes 6-7 weeks to complete.

Dr. Colletta and Dr. Moncrief are very experienced in MammoSite catheter insertions, having performed numerous procedures over the last few years. This procedure is performed in the office and lasts approximately 20- 30 minutes.


Surgical Associates of Palm Beach County / Boca Care (SAPBC) is a multi-specialty surgical group practice with expertise in General, Breast, Vascular, Endovascular, Thoracic, Colon Rectal, and Surgical Oncology. Our office is located in Boca Raton Florida.

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Surgical Associates of Palm Beach County / Boca Care | 670 Glades Rd, Ste 300 Boca Raton, FL 33431 | Phone: 561-395-2626

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