Abstract：
Autologous fat grafting (AFG) is a technique that is increasingly utilized in breast cosmetic and reconstructive surgery. In this procedure, fat is aspirated by liposuction from one area of the body and injected into the breast. The procedure and process of AFG has evolved over the last few decades, leading to more widespread use, though there is no standard method. Autologous fat grafting is generally considered a safe procedure but may result in higher utilization of diagnostic imaging due to development of palpable lumps related to fat necrosis. Imaging findings depend on surgical technique but typically include bilateral, symmetric, retromammary oil cysts and scattered dystrophic and/or coarse calcifications when AFG is used for primary breast augmentation. More focal findings occur when AFG is used to improve specific areas of cosmetic deformity, scarring, or pain following breast cancer surgery. As with any cause of fat necrosis, imaging features tend to appear more benign over time, with development of rim calcifications associated with oil cysts and a shift in echogenicity of oil cyst contents on ultrasound towards anechoic in some cases. This article reviews the AFG procedure, uses, complications, and imaging findings.
摘要：
自体脂肪移植（AFG）是一种越来越多地用于乳房美容和重建手术的技术。在这个过程中，脂肪通过吸脂术从身体的一个部位吸出并注入乳房。AFG的程序和过程在过去的几十年中不断发展，导致更广泛的使用，虽然没有标准的方法。自体脂肪移植通常被认为是安全的程序，但由于与脂肪坏死有关的明显肿块的发展，可能会导致诊断成像的更高利用率。影像学检查结果取决于手术技术，但通常包括双侧，对称，当AFG用于原发性隆乳时，乳房后油囊肿和散在的营养不良和/或粗钙化。当AFG用于改善美容畸形的特定区域时，会出现更多的局灶性发现，疤痕,或乳腺癌手术后的疼痛。和任何引起脂肪坏死的原因一样,随着时间的推移，成像特征往往会显得更加良性，随着与油囊肿相关的边缘钙化的发展，并且在某些情况下，超声波上的油囊肿内容物的回声向无回声转移。本文回顾了AFG程序，uses,并发症,和成像发现。
