Histological and Microbiological Evaluation of Late Occurring Nodules With Hyaluronic Acid Dermal Fillers

Exclusion Criteria

• •Have received non-HA fillers (e.g. polyacrylamide, calcium hydroxyapatite, poly-L-lactic acid, polymethylmethacrylate, silicone, expanded polytetrafluoroethylene, collagen) including mixes with HA fillers anywhere in the face.
• •Are currently enrolled in a dermal filler clinical trial or previously enrolled in a dermal filler clinical trial with randomized treatment in which the type of dermal filler is unknown (i.e. non-HA filler arm of study).
• •Have history of keloid or hypertrophic scarring
• •Have received intralesional intervention for the nodule (e.g. hyaluronidase, corticosteroids, antibiotics, 5-fluorouracil).
• •Are pregnant