common site of necrosis due to filler injection complication
The incidence of necrosis related to the injection of fillers has been reported in 9 of every 100,000 cases, and 50 percent of these were in the glabellar region.
Small vessels branching from the supratrochlear and supraorbital arteries provide the blood supply to the glabellar region and the collateral circulation is limited.
Necrosis can occur immediately after the injection of fillers but may also present with a delayed onset due to the swelling and expansion of the filler.
Signs and symptoms of necrosis :Pain, Prolonged blanching, Dusky, purple discoloration, Coolness.
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