PLA is an injectable filler substance that may cause subcutaneous nodules in treated patients. Our data support a decreased risk of adverse reactions with an increased dilution. However, nodule formation still appears to be a characteristic feature of PLA.
Adverse reactions to this methacrylate filler are common. The mean latency period for these mostly severe rated reactions was nearly 2 years. Based on the frequency and severity of these reactions, the use of this filler does not seem to be advisable.
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