Desmoid Tumor Following Augmentation Mammoplasty with Silicone Implants

numerous factors, such as trauma history, hereditary background (e.g., familial adenomatous polyposis), and the hormonal environment are strongly associat­ ed with the development of desmoid tumors [1,3]. Desmoid tumors account for 0.03% of all neoplasms and 0.2% of all breast tumors. There are few case reports describing implant­associated breast desmoid tumors in the literature [4], and no studies associated with breast implants have been reported in Korea. We report here a case of a desmoid tumor that developed following augmentation mammoplasty and describe our experience of treating this case. A 34­year­old woman was referred to our hospital in February 2012 due to a painful mass in the upper part of her left breast that was increasing in size. She had undergone augmentation mammoplasty with silicone implants at a local clinic in January 2010, but the implant had been changed because capsular con­ tracture had developed in August 2010. Two years after the implant was changed, this patient’s symptoms, including pain and asymmetry, became progressively more aggravated. She visited another local clinic and the implant was scheduled to be changed again to relieve the symptoms of capsular contracture in February 2012. During this surgery, a palpable mass was incidentally found under the pectoralis muscle of her left breast, and she was referred to our hospital. Preoperative magnetic resonance imaging (MRI) revealed a well­defined solid submuscular mass with low to intermediate signal intensity on T1 imaging and high signal intensity on T2 imaging, demonstrat­ ing a size of 6.4 cm×2.6 cm×5.8 cm (Fig. 1). Tumor excision and capsulectomy were subsequently per­ formed. The diagnosis of frozen biopsy was benign Desmoid Tumor Following Augmentation Mammoplasty with Silicone Implants