Complications after breast augmentation with hyaluronic acid: a case report.

Breast augmentation is a very requested procedure in aesthetic surgery. Over time, various techniques of breast augmentation have been described, both through the use of alloplastic materials and autologous tissues: implants, fat grafting, flap surgery, and injectable fillers. According to the international current trend to perform minimally invasive procedure, injectable fillers have progressively increased their uses and notoriety in aesthetic medicine. Among the various available products, hyaluronic acid is likely to be the most popular synthetic filler all over the world. Nowadays many brands are on the market and this paper focuses on Macrolane which is a NASHA-based (stabilized hyaluronic acid of non-animal origin) filler. However, although highly biocompatible, as any material, foreign to our body, also hyaluronic acid fillers undergo a process of degradation and disposal. In our work, we report the first case in literature of migration of Macrolane in an axillary lymph node in a 45-year-old woman three years after injection for breast augmentation and its related management. The aim of the paper is to discuss and underline further complications and their treatment besides the ones already described in literature in order to provide a deeper knowledge concerning the use and the side effects of injectable fillers in aesthetic medicine.