Abstract
Accelerated partial breast irradiation is commonly done with the MammoSite applicator, which requires symmetry to treat the patient. This paper describes three cases that were asymmetric when initially placed and became symmetric over time, without manipulation.
Highlights
Accelerated partial breast irradiation (APBI) with the MammoSite catheter is a new brachytherapy concept in breast conserving therapy for a subset of patients with early stage breast cancer [1,2]
The catheter consists of an inflatable balloon and a central channel for HDR brachytherapy
The patient was seen in our department and had a full history, physical, and pathology review. Based on her history and pathology, she was deemed a candidate for APBI with the MammoSite applicator and was placed in our institutional protocol
Summary
Accelerated partial breast irradiation (APBI) with the MammoSite catheter is a new brachytherapy concept in breast conserving therapy for a subset of patients with early stage breast cancer [1,2]. The patient subsequently had a lumpectomy and axillary node dissection, with pathology revealing a well-differentiated 9 mm invasive ductal carcinoma with no lympho-vascular space invasion. Based on her history and pathology, she was deemed a candidate for APBI with the MammoSite applicator and was placed in our institutional protocol. The scan revealed an asymmetrical applicator, with the isotope channel off center by 5 mm.
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