Brachytherapy 2011
Partial breast irradiation in a patient with bilateral breast cancers and CREST syndrome.   
To describe the first documented use of partial breast irradiation (PBI) in a patient with calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, and telangiectasias (CREST) syndrome.
A 50-year-old woman with well-controlled CREST syndrome for 6 years was diagnosed with bilateral early-staged breast cancers. She underwent bilateral lumpectomies, sentinel lymph node biopsies, and PBI delivered via bilateral MammoSite catheters (Cytyc Corp., Marlborough, MA) followed by chemotherapy. She was monitored perioperatively, at 6 months and at 1 year for worsening of her CREST-related symptoms and complications associated with surgery and radiation therapy. Both surgeon and patient's opinion of her cosmetic outcome were also recorded at 1-year followup.
The patient experienced mild acute cellulitic changes in the perioperative period, which resolved with antibiotics. At 6 months, she exhibited a Grade 1 late toxicity, which has remained stable at 1-year followup. The patient and surgeon are very pleased with her cosmetic outcome.
Accelerated PBI was delivered safely to a patient with collagen vascular disease. By decreasing the surface area receiving radiation with accelerated PBI, we believe that the toxicity associated with the treatment was minimized. Future studies will be necessary to clarify the use of PBI in patients with collagen vascular disease.

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