1527 A Rare Case of Facial Skin Necrosis Following Subdermal Poly-L-Lactic Acid Injection

Abstract Introduction Non-surgical / minimally invasive aesthetic procedures are a growing trend in the UK. A range of devices available for soft tissue augmentation, including injectable Poly-L-Lactic acid (PLLA). PLLA is used augmentation and thought effective correction contour deficiencies, facial wrinkles restoring subcutaneous volume patients with HIV-associated lipoatrophy. Method In this case report, we present rare but serious complication subdermal injection acid. 45-year-old lady presented to our service approximately 24 hours after administration self-sourced poly-L-Lactic Results 4cm ovaloid patch full thickness skin necrosis over zygomatic region was evident on presentation, reactive/inflammatory changes adjacent skin. Vascular compromise deemed most likely cause, loss transverse artery mapping area necrosis. This patient managed conservatively, dressings prophylactic course antibiotics. Conclusions recognised augmentation. The branches from superficial temporal within substance parotid gland. Cadaveric imaging studies alike demonstrate that common anatomical variant single TFA (70%), originating at level temporofacial trunk nerve. It typically has 5cm course, giving off average 1.9 cutaneous perforators. highlights importance detailed understanding anatomy ensure safe placement dermal fillers/devices.