Fig. 1.

pproximately 3×4-cm2 skin defect due to necrosis on day 1. Skin necrosis occurred after the patient was administered a filler injection in the glabellar area 3 weeks previously

pproximately 3×4-cm2 skin defect due to necrosis on day 1. Skin necrosis occurred after the patient was administered a filler injection in the glabellar area 3 weeks previously